List of marginocephalian type specimens explained

This list of specimens is a comprehensive catalogue of all the type specimens and their scientific designations for each of the genera and species that are included in the clade marginocephalia.Marginocephalia is a clade of ornithischian dinosaurs that includes some of the most well-known Mesozoic animals, such as Triceratops and Pachycephalosaurus. The group is united by, and is named for, the presence of a bony margin formed mostly from the parietal and squamosal bones at the posterior end of the skull. Although the first marginocephalian known to scientists, Agathaumas, was described in 1872 by Edward Drinker Cope, the clade itself was not recognized until the latter part of the 20th century when Paul Sereno first united the two major groups, ceratopsians and pachycephalosaurians into a single clade.[1]

Marginocephalians first appeared in the Jurassic period as small bipedal animals. However, they saw an apparent increase in diversity during the Early Cretaceous period which culminated in the emergence of megafaunal forms by the end of the period that weighed in excess of five metric tons. Most of their diversity is known from North America and Asia, with a few remains attributed to the group from Europe, South America, and Australia.

Scope and Terminology

This list will include the type fossils of each marginocephalian species. In paleontology, a type specimen is one which is definitionally a member of a biological taxon. Additional specimens can only be "referred" to these taxa if an expert deems them sufficiently similar to the type and publishes that opinion in the scientific literature.

There is no complete, canonical list of all dinosaur taxa or holotype specimens. Attempts are regularly published in the form of books, such as the Princeton Field Guide to Dinosaurs by Gregory Paul[2] and Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages by Thomas Holtz and Luis Rey.[3] Where appropriate, The Paleobiology Database and Fossilworks, which are both online databases of named fossil taxa, are used to supplement the entries from published encyclopedias which are missing or data-deficient.

This list will also be updated regularly as new scientific descriptions are published and new taxa are named. The most recently named marginocephalian is Lokiceratops rangiformis, which was named in June 2024 by Mark Loewen, Joseph Sertich, Scott Sampson, Jingmai O’Connor, Savhannah Carpenter, Brock Sisson, Anna Øhlenschlæger, Andrew Farke, Peter Makovicky, Nick Longrich, and David Evans.

Type System

Types are also used to diagnose higher-level taxa than an individual. One individual might represent the "type specimen" of a particular species. This species would in turn represent the "type species" of a particular genus, unless it is referred to a previously described genus. Most dinosaur genera are monospecific, therefore most type specimens are also the type species of their respective genera. On this list, the type species of a genus is only noted when it belongs to a genus with multiple referred species, such as Psittacosaurus or Chasmosaurus. Furthermore, when an animal is different enough from its close relatives that it is given its own family, it is conventional in dinosaur systematics to name a family after the first described, most famous, or most abundant genus assigned to it. Therefore, on this list, the type species of any type genus for a family or sub-family level taxon is also noted when appropriate.

There are several different varieties of type specimen when referring to fossil animals:

All name-bearing type specimens (i.e. holotypes, lectotypes, neotypes, and syntypes) have unique entries on this list, and non-name-bearing types (i.e. paratypes, paralectotypes, and topotypes) are noted alongside their name-bearing counterpart.

Validity

Some described species are later determined to be invalid by subsequent scientific publications. However, invalid species are sometimes resurrected, such as in the case of Brontosaurus,[4] and sometimes the validity of a species can be controversial among researchers (e.g. the case of Torosaurus and Triceratops). For the purposes of neutrality and completeness, all described species and genera of marginocephalians are included, even those that have been subsequently considered invalid by subsequent scientific publications.

Naming conventions and terminology follow the International Code of Zoological Nomenclature (ICZN).[5] Technical terms used include:

Omissions

Some taxa of marginocephalians are not included on this list. Nomina nuda are not included because a type does not become recognized by the ICZN until it is published in a scientific journal with a full description.

Some misidentified taxa are also not included so long as there is a scientific consensus with regard to the specimen in question. If a specimen is later referred to a taxon outside marginocephalia, it is not included on this list. However, specimens that are identified as marginocephalians in publications subsequent to their initial description are included under the name they are given within marginocephalia. For example, Pachycephalosaurus was originally described as a species of the theropod genus Troodon. This is noted where appropriate, but there is no entry on the list under the name Troodon wyomingensis because the specimen itself is now referred to a taxon within marginocephalia.

Referred taxa are only included on the list as separate entries when their initial description includes a unique type specimen (e.g. Triceratops obtusus or Dracorex hogwartsia).

List of Specimens

See also

Notes and References

  1. Madzia . D. . Arbour . V.M. . Boyd . C.A. . Farke . A.A. . Cruzado-Caballero . C. . Evans . D.C. . 2021 . The phylogenetic nomenclature of ornithischian dinosaurs . PeerJ . 9 . e12362 . 10.7717/peerj.12362. 34966571 . 8667728 . free .
  2. Book: Paul, G. S. . The Princeton Field Guide to Dinosaurs . Princeton University Press . 2010 . 978-0-691-13720-9 .
  3. Book: Hotlz . Dr. Thomas R. . Rey, Luis V. . 2007 . Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages . Random House Books for Young Readers . 978-0375824197.
  4. 10.7717/peerj.857. A specimen-level phylogenetic analysis and taxonomic revision of Diplodocidae (Dinosauria, Sauropoda). PeerJ. 3. e857. 2015. Tschopp . E. . Mateus . O. V. . Benson . R. B. J. . 25870766 . 4393826. free.
  5. Web site: ICZN Code Art. 5 . 2016-12-09 . 2016-12-20 . https://web.archive.org/web/20161220122635/http://www.nhm.ac.uk/hosted-sites/iczn/code/includes/page.jsp?article=5 . live .
  6. Sampson. S.D.. 1995. Two new horned dinosaurs from the Upper Cretaceous Two Medicine Formation of Montana; with a phylogenetic analysis of the Centrosaurinae (Ornithischia: Ceratopsidae). Journal of Vertebrate Paleontology. 15. 4. 743–760. 10.1080/02724634.1995.10011259. 1995JVPal..15..743S .
  7. Evans. David C.. Schott. Ryan K.. Larson. Derek W.. Brown. Caleb M.. Ryan. Michael J.. 2013-05-07. The oldest North American pachycephalosaurid and the hidden diversity of small-bodied ornithischian dinosaurs. Nature Communications. En. 4. 1828. 10.1038/ncomms2749. 23652016. 2041-1723. 2013NatCo...4.1828E. free.
  8. E. D. Cope. 1872. On the existence of Dinosauria in the transition beds of Wyoming. Proceedings of the American Philosophical Society (separate) 1-2
  9. Ostrom . J. H. . Wellnhofer . P. . 1985 . The Munich specimen of Triceratops with a revision of the genus . Zitteliana . 14 . 111–158.
  10. 10.1080/02724634.1989.10011749. Chasmosaurus mariscalensis, sp. Nov., a new ceratopsian dinosaur from Texas. Journal of Vertebrate Paleontology. 9. 2. 137–162. 1989. Lehman . T. M. . 1989JVPal...9..137L.
  11. Lucas . S.G. . Sullivan . R.M. . Hunt . A.P. . Re-evaluation of Pentaceratops and Chasmosaurus (Ornithischia: Ceratopsidae) in the Upper Cretaceous of the Western Interior . New Mexico Museum of Natural History and Science Bulletin . 2006 . 35 . 367–370 .
  12. T.M. . Lehman . S.L. . Wick . K.R. . Barnes . 2016 . New specimens of horned dinosaurs from the Aguja Formation of West Texas, and a revision of Agujaceratops . Journal of Systematic Palaeontology . 15 . 8 . 641–674 . 10.1080/14772019.2016.1210683 . 88907183 .
  13. Ősi . Attila . Butler . R.J. . Weishampel . David B.. A Late Cretaceous ceratopsian dinosaur from Europe with Asian affinities. Nature . 465 . 7297 . 466–468. 2010-05-27 . 20505726. 10.1038/nature09019. 2010Natur.465..466O . 205220451 .
  14. Sullivan . RM. A taxonomic review of the Pachycephalosauridae (Dinosauria: Ornithischia). New Mexico Museum of Natural History and Science Bulletin . 2006 . 35 . 347–365.
  15. 10.1671/039.029.0306 . Ohashi . T. . Barrett. P. M. . 2009 . A new ornithischian dinosaur from the Lower Cretaceous Kuwajima Formation of Japan . Journal of Vertebrate Paleontology . 29 . 3 . 748–757. 2009JVPal..29..748O . 128546047 .
  16. 2021-01-01. Paleoclimate and ecology of Cretaceous continental ecosystems of Japan inferred from the stable oxygen and carbon isotope compositions of vertebrate bioapatite. Journal of Asian Earth Sciences. en. 205. 104602. 10.1016/j.jseaes.2020.104602. 1367-9120. free. Amiot. Romain. Kusuhashi. Nao. Saegusa. Haruo. Shibata. Masateru. Ikegami. Naoki. Shimojima. Shizuo. Sonoda. Teppei. Fourel. François. Ikeda. Tadahiro. Lécuyer. Christophe. Philippe. Marc. Wang. Xu. 2021JAESc.20504602A.
  17. Han . Feng-Lu . Barrett. Paul M.. Butler. Richard J.. Xu. Xing . 2012 . Postcranial anatomy of Jeholosaurus shangyuanensis (Dinosauria, Ornithischia) from the Lower Cretaceous Yixian Formation of China. . Journal of Vertebrate Paleontology . 32 . 6 . 1370–1395 . 10.1080/02724634.2012.694385 . 2012JVPal..32.1370H . 86754247 .
  18. 10.1666/0022-3360(2007)81[376:ANBCCF]2.0.CO;2. 0022-3360. 2007. 81. 2. 376–396. A New Basal Centrosaurine Ceratopsid from the Oldman Formation, Southeastern Alberta. Journal of Paleontology. Ryan. Michael J.. 130607301 .
  19. Watabe. Mahito . Tsogtbaatar. Khishigjaw . Sullivan. Robert M. . amp . 2011 . A new pachycephalosaurid from the Baynshire Formation (Cenomanian-late Santonian), Gobi Desert, Mongolia . New Mexico Museum of Natural History and Science Bulletin . 53 . 489–497 .
  20. Book: Nessov , L. A. . 1995 . Dinosaurs of northern Eurasia: new data about assemblages, ecology and paleobiogeography . Saint Petersburg . Saint Petersburg University . 156 . ru.
  21. Sternberg . C.M. . 1929 . A new species of horned dinosaur from the Upper Cretaceous of Alberta . National Museum of Canada Bulletin . 54 . 34–37 .
  22. Lehman, T.M. 1990. "The ceratopsian subfamily Chasmosaurinae: sexual dimorphism and systematics". In: Carpenter, K. & Currie, P.J. (Eds.). Dinosaur Systematics: Approaches and Perspectives. Cambridge: Cambridge University Press. Pp. 211–219
  23. Brown . B . 1914 . Anchiceratops, a new genus of horned dinosaurs from the Edmonton Cretaceous of Alberta. With a discussion of the origin of the ceratopsian crest and the brain casts of Anchiceratops and Trachodon". . Bulletin of the American Museum of Natural History . 33 . 539–548 .
  24. Andrew A. . Farke . W. Desmond . Maxwell . Richard L. . Cifelli . Mathew J. . Wedel . Matt J. Wedel . 2014-12-10 . A Ceratopsian Dinosaur from the Lower Cretaceous of Western North America, and the Biogeography of Neoceratopsia . . 9 . 12 . 10.1371/journal.pone.0112055 . 25494182 . 4262212 . e112055. 2014PLoSO...9k2055F . free .
  25. Redescription of neoceratopsian dinosaur Archaeoceratops and early evolution of Neoceratopsia. You. H.. Dodson. P.. Acta Palaeontologica Polonica. 48. 2. 261–272. 2003.
  26. Book: You . Hai-Lu . Tanque. Kyo. Dodson. Peter . 2010 . A new species of Archaeoceratops (Dinosauria: Neoceratopsia) from the Early Cretaceous of the Mazongshan area, northwestern China . Ryan, Michael J.. Chinnery-Allgeier, Brenda J.. Eberth, David A. . New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium . Bloomington and Indianapolis . Indiana University Press . 59–67 . 978-0-253-35358-0.
  27. Parks, W.A. (1925). "Arrhinoceratops brachyops, a new genus and species of Ceratopsia from the Edmonton Formation of Alberta". University of Toronto Studies, Geology Series 19:1-15
  28. L.A. Nessov, (1995), Dinozavri severnoi Yevrazii: Novye dannye o sostave kompleksov, ekologii i paleobiogeografii, Institute for Scientific Research on the Earth's Crust, St. Petersburg State University, St. Petersburg 156 pp
  29. Makovicky . Peter J. . Norell. Mark A. . 2006 . Yamaceratops dorngobiensis, a new primitive ceratopsian (Dinosauria: Ornithischia) from the Cretaceous of Mongolia . American Museum Novitates . 3530 . 1–42 . 10.1206/0003-0082(2006)3530[1:YDANPC]2.0.CO;2.
  30. [Birger Bohlin|Bohlin, B.]
  31. You. H.. Li . D.. Ji . Q. . Lamanna . H.. Dodson . P. . 2005 . On a new genus of basal Neoceratopsian dinosaur from the Early Cretaceous of Gansu Province, China. Acta Geologica Sinica . 79 . 5. 593–597 .
  32. Web site: Auroraceratops type, Gongpoquan Basin. Butler. Richard. 2010-07-01. www.fossilworks.org. 2023-05-19.
  33. Dodson, P.. 1986. Avaceratops lammersi: a new ceratopsid from the Judith River Formation of Montana.. Proceedings of the Academy of Natural Sciences of Philadelphia. 138. 2. 305–317.
  34. Maryańska. T.. Osmólska. H.. 1975. Protoceratopsidae (Dinosauria) of Asia. Palaeontologia Polonica. 33. 134−143.
  35. Watabe, M., Suzuki, S., 2000a. Report on the Japan-Mongolia Joint Paleontological Expedition to the Gobi desert, 1993. Hayashibara Museum of Natural SciencesResearch Bulletin 1, 17 29.
  36. Tereshchenko. V.. Alifanov. V. R.. 2003. Bainoceratops efremovi, a New Protoceratopid Dinosaur (Protoceratopidae, Neoceratopsia) from the Bain-Dzak Locality (South Mongolia). Paleontological Journal. 37. 3. 293–302.
  37. Yu. Congyu. Prieto-Marquez. Albert. Chinzorig. Tsogtbaatar. Badamkhatan. Zorigt. Norell. Mark. 2020-09-10. A neoceratopsian dinosaur from the early Cretaceous of Mongolia and the early evolution of ceratopsia. Communications Biology. en. 3. 1. 499. 10.1038/s42003-020-01222-7. 32913206. 7484756. 2399-3642. free.
  38. Dalman SG, Jasinski SE, Lucas SG. A new chasmosaurine ceratopsid from the Upper Cretaceous (Campanian) Farmington Member of the Kirtland Formation, New Mexico. 2022. New Mexico Museum of Natural History and Science Bulletin . 90 . 127–153 .
  39. Gilmore . Charles W. . A new ceratopsian dinosaur from the upper cretaceous of Montana, with note on Hypacrosaurus . Smithsonian Miscellaneous Collections . 1914 . 63 . 3 . 1–10 . 10088/23520.
  40. Ryan . Michael J. . Holmes, Robert . Russell, A.P. . 2007 . A revision of the late Campanian centrosaurine ceratopsid genus Styracosaurus from the Western Interior of North America . Journal of Vertebrate Paleontology . 27 . 4 . 944–962 . 10.1671/0272-4634(2007)27[944:AROTLC]2.0.CO;2 . 86218327 . 2010-08-19.
  41. Wick . S. L. . Lehman . T. M. . 10.1007/s00114-013-1063-0 . A new ceratopsian dinosaur from the Javelina Formation (Maastrichtian) of West Texas and implications for chasmosaurine phylogeny . Naturwissenschaften . 100. 7. 667–82. 2013 . 23728202. 2013NW....100..667W . 16048008 .
  42. Fowler . D. W. . Freedman Fowler . E. A. . Transitional evolutionary forms in chasmosaurine ceratopsid dinosaurs: evidence from the Campanian of New Mexico . PeerJ . 2020 . 8 . e9251 . 10.7717/peerj.9251. 32547873 . 7278894 . free .
  43. Dalman. Sebastian G.. Lucas. Spencer G.. Jasinski. Steven E.. Longrich. Nicholas R.. 2021-09-29. Sierraceratops turneri, a new chasmosaurine ceratopsid from the Hall Lake Formation (Upper Cretaceous) of south-central New Mexico. Cretaceous Research. 130. en. 105034. 10.1016/j.cretres.2021.105034. 2022CrRes.13005034D . 244210664. 0195-6671.
  44. Kurzanov. S. M.. 1990. Новый род протоцератопсид из позднего мела Монголии. A new Late Cretaceous protoceratopsid genus from Mongolia. Paleontological Journal. 4. 91−97. ru.
  45. Czepiński. Ł.. 2019. Ontogeny and variation of a protoceratopsid dinosaur Bagaceratops rozhdestvenskyi from the Late Cretaceous of the Gobi Desert. Historical Biology. 32. 10. 1394–1421. 10.1080/08912963.2019.1593404. 132780322. 2023-05-25. 2021-07-08. https://web.archive.org/web/20210708144840/http://dinosaurmailinglist.cmnh.org/2019Apr/pdfzmfpMk1aO4.pdf. dead.
  46. Web site: †Centrosaurus apertus Lambe 1905 (ceratopsid). www.fossilworks.org. 2023-05-19.
  47. 10.5281/zenodo.3233762 . 1902 . Lambe L. . M. . New genera and species from the Belly River Series (Mid-Cretaceous) . Geological Survey of Canada Contributions to Canadian Palaeontology . 3 . 25–81 .
  48. Lambe, L.M. (1904). "On the squamoso-parietal crest of the horned dinosaurs Centrosaurus apertus and Monoclonius canadensis from the Cretaceous of Alberta". Transactions of the Royal Society of Canada. Series 2. 10 (4): 1–9.
  49. Chinnery. Brenda J.. Horner, John R.. 2007. A new neoceratopsian dinosaur linking North American and Asian taxa. Journal of Vertebrate Paleontology. 27. 3. 625–641. 10.1671/0272-4634(2007)27[625:ANNDLN]2.0.CO;2. 86091277 .
  50. Marsh . O.C. . 1888 . A new family of horned Dinosauria, from the Cretaceous . The American Journal of Science . Series 3 . 36 . 216. 477–478 . 10.2475/ajs.s3-36.216.477 . 1888AmJS...36..477M . 130243398 .
  51. Penkalski, P.G., 1993, "The morphology of Avaceratops lammersi, a primitive ceratopsid from the Campanian of Montana", Journal of Vertebrate Paleontology 13(3, supplement): 52A
  52. P. Dodson and P. J. Currie, 1990, "Neoceratopsia". In: D.B. Weishampel, H. Osmolska, and P. Dodson (eds.), The Dinosauria. First Edition. University of California Press, Berkeley pp 593-618
  53. Xijin. Zhao . Zhengwu. Cheng . Xing. Xu . amp . 1999 . The earliest ceratopsian from the Tuchengzi Formation of Liaoning, China . Journal of Vertebrate Paleontology . 19 . 4 . 681–691 . 1999-12-13 . 10.1080/02724634.1999.10011181. 1999JVPal..19..681X .
  54. Book: Dodson, Peter . Chasmosaurus . The Age of Dinosaurs . 1993 . Publications International . 0-7853-0443-6 . 110–111 . etal.
  55. Lull, R.S., 1933, A revision of the Ceratopsia or horned dinosaurs. Memoirs of the Peabody Museum of Natural History 3(3): 1–175
  56. T.M. Lehman, 1990, "The ceratopsian subfamily Chasmosaurinae: sexual dimorphism and systematics", In: K. Carpenter and P. J. Currie (eds.), Dinosaur Systematics: Perspectives and Approaches, Cambridge University Press, Cambridge, pp. 211–229
  57. Web site: Eoceratops canadensis Lambe, 1915. Barnett. V.H.. 2021-10-01. Smithsonian Institution. 2023-05-19.
  58. Lambe . L.M. . 1915 . On Eoceratops canadensis, gen. nov., with remarks on other genera of Cretaceous horned dinosaurs . Canada Geological Survey Museum Bulletin . 24 . 1–49 .
  59. 10.1371/journal.pone.0145805 . free . A Re-Evaluation of the Chasmosaurine Ceratopsid Genus Chasmosaurus (Dinosauria: Ornithischia) from the Upper Cretaceous (Campanian) Dinosaur Park Formation of Western Canada . 2016 . Campbell . James A. . Ryan . Michael J. . Holmes . Robert B. . Schröder-Adams . Claudia J. . PLOS ONE . 11 . 1 . e0145805 . 26726769 . 4699738 . 2016PLoSO..1145805C .
  60. Brown, B., 1933, "A new longhorned Belly River ceratopsian", American Museum Novitates 669: 1–3
  61. Nicholas R.. Longrich. 2010. Mojoceratops perifania, A New Chasmosaurine Ceratopsid from the Late Campanian of Western Canada. Journal of Paleontology. 84. 4. 681–694. 10.1666/09-114.1. 2010JPal...84..681L . 129168541.
  62. Sternberg, C.M., 1940, "Ceratopsidae from Alberta", Journal of Paleontology 14(5): 468–480
  63. Longrich. Nicholas. Systematics of Chasmosaurus - new information from the Peabody Museum skull, and the use of phylogenetic analysis for dinosaur alpha taxonomy. 2015. F1000Research. 4. 1468. 10.12688/f1000research.7573.1. free.
  64. Loewen, M.A., Sampson, S.D., Lund, E.K., Farke, A.A., Aguillón-Martínez, M.C., de Leon, C.A., Rodríguez-de la Rosa, R.A., Getty, M.A., Eberth, D.A., 2010, "Horned Dinosaurs (Ornithischia: Ceratopsidae) from the Upper Cretaceous (Campanian) Cerro del Pueblo Formation, Coahuila, Mexico", In: Michael J. Ryan, Brenda J. Chinnery-Allgeier, and David A. Eberth (eds), New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium, Indiana University Press, 656 pp.
  65. C. M. Sternberg. 1945. Pachycephalosauridae proposed for dome-headed dinosaurs, Stegoceras lambei, n. sp., described. Journal of Paleontology 19(5):534-538
  66. Sullivan, R. M. . 2003 . Revision of the dinosaur Stegoceras Lambe (Ornithischia, Pachycephalosauridae) . Journal of Vertebrate Paleontology . 23 . 181–207 . 10.1671/0272-4634(2003)23[181:rotdsl]2.0.co;2. 85894105 .
  67. Ryan . M. J. . Evans . D. C. . Shepherd . K. M. . Sues . H. . A new ceratopsid from the Foremost Formation (middle Campanian) of Alberta . 10.1139/e2012-056 . Canadian Journal of Earth Sciences . 49 . 10 . 1251 . 2012 . 2012CaJES..49.1251R . free .
  68. Ryan . M. J. . Russell . A. P. . 10.1139/e05-029 . A new centrosaurine ceratopsid from the Oldman Formation of Alberta and its implications for centrosaurine taxonomy and systematics . Canadian Journal of Earth Sciences . 42 . 7 . 1369 . 2005 . 2005CaJES..42.1369R . 1880/47001 . free .
  69. Dollo, L., 1883, "Note sur les restes de dinosauriens rencontrées dans le Crétacé supérieure de la Belgique", Bulletin du Musée royale d' Histoire naturelle de Belgique, 2: 205-221
  70. Godefroit . Pascal . Lambert, Olivier . 2007 . A re-appraisal of Craspedodon lonzeensis Dollo, 1883 from the Upper Cretaceous of Belgium: the first record of a neoceratopsian dinosaur in Europe? . Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Sciences de la Terre . 77 . 83–93 .
  71. Sebastian G. . Dalman . John-Paul M. . Hodnett . Asher J. . Lichtig . Spencer G. . Lucas . 2018 . A new ceratopsid dinosaur (Centrosaurinae: Nasutoceratopsini) from the Fort Crittenden Formation, Upper Cretaceous (Campanian) of Arizona . New Mexico Museum of Natural History and Science Bulletin . 79 . 141–164 .
  72. Kirkland, J.I. and DeBlieux, D.D. (2010). "New basal centrosaurine ceratopsian skulls from the Wahweap Formation (Middle Campanian), Grand Staircase–Escalante National Monument, southern Utah", In: Ryan, M.J., Chinnery-Allgeier, B.J., and Eberth, D.A. (eds.) New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium. Bloomington, Indiana University Press, pp. 117–140
  73. Beveridge . Tegan L. . Roberts . Eric M. . Ramezani . Jahandar . Titus . Alan L. . Eaton . Jeffrey G. . Irmis . Randall B. . Sertich . Joseph J.W. . April 2022 . Refined geochronology and revised stratigraphic nomenclature of the Upper Cretaceous Wahweap Formation, Utah, U.S.A. and the age of early Campanian vertebrates from southern Laramidia . Palaeogeography, Palaeoclimatology, Palaeoecology . 591 . 110876 . 10.1016/j.palaeo.2022.110876 . 2022PPP...59110876B . 246766015 . 0031-0182. free .
  74. Bakker, Robert . Sullivan, Robert . Porter, Victor . Larson, Peter . Saulsbury, Steven . 2006 . Dracorex hogwartsia, n. gen., n. sp., a spiked, flat-headed pachycephalosaurid dinosaur from the Upper Cretaceous Hell Creek Formation of South Dakota . New Mexico Museum of Natural History and Science Bulletin . 35 . 331–346.
  75. Horner . J. R. . Goodwin, M. B. . 2009 . Extreme Cranial Ontogeny in the Upper Cretaceous Dinosaur Pachycephalosaurus . PLOS ONE . 19859556 . 4 . 2762616 . 10 . 10.1371/journal.pone.0007626 . e7626 . 2009PLoSO...4.7626H . Sereno . Paul. free .
  76. Goodwin. Mark B.. Evans. David C.. 2016. The early expression of squamosal horns and parietal ornamentation confirmed by new end-stage juvenile Pachycephalosaurus fossils from the Upper Cretaceous Hell Creek Formation, Montana. Journal of Vertebrate Paleontology. 36. 2. e1078343. 10.1080/02724634.2016.1078343. 2016JVPal..36E8343G . 131282984. 0272-4634.
  77. 10.1080/02724634.1995.10011259 . Sampson . S.D. . 1995 . Two new horned dinosaurs from the Upper Cretaceous Two Medicine Formation of Montana; with a phylogenetic analysis of the Centrosaurinae (Ornithischia: Ceratopsidae) . Journal of Vertebrate Paleontology . 15 . 4. 743–760 . 1995JVPal..15..743S .
  78. Wu . X-C. . Brinkman . D.B. . Eberth . D.A. . Braman . D.R. . 2007 . A new ceratopsid dinosaur (Ornithischia) from the uppermost Horseshoe Canyon Formation (upper Maastrichtian), Alberta, Canada . Canadian Journal of Earth Sciences . 44 . 9 . 1243–1265 . 10.1139/E07-011. 2007CaJES..44.1243W .
  79. Book: Paul, G. S. . The Princeton Field Guide to Dinosaurs . Princeton University Press . 2010 . 265 . 978-0-691-13720-9 .
  80. Arbour. Victoria M.. Graves. Milton C.. 2008. Sues. Hans-Dieter. An ornithischian dinosaur from the Sustut Basin, north-central British Columbia, Canada. Canadian Journal of Earth Sciences. en. 45. 4. 457–463. 10.1139/E08-009. 2008CaJES..45..457A. 0008-4077.
  81. News: Grossman. Nina. November 7, 2019. VIDEO: Victoria museum unveils 'Buster' a new unique-to-B.C. dinosaur. Victoria News.
  82. Book: Sullivan . R.M. . 2006 . A taxonomic review of the Pachycephalosauridae (Dinosauria: Ornithischia) . Lucas . S.G. . Sullivan . R.M. . Late Cretaceous vertebrates from the Western Interior . 35 . 347–365 . New Mexico Museum of Natural History and Science Bulletin . http://www.robertmsullivanphd.com/uploads/130_Sullivan__2006__-Pachycephalosauridae.pdf . 2016-11-26 . 2007-09-27 . https://web.archive.org/web/20070927214216/http://www.robertmsullivanphd.com/uploads/130_Sullivan__2006__-Pachycephalosauridae.pdf . dead .
  83. Schott . R.K. . Evans . D.C. . 2016 . Cranial variation and systematics of Foraminacephale brevis gen. nov. and the diversity of pachycephalosaurid dinosaurs (Ornithischia: Cerapoda) in the Belly River Group of Alberta, Canada. . Zoological Journal of the Linnean Society . 10.1111/zoj.12465 .
  84. Furcatoceratops elucidans, a new centrosaurine (Ornithischia: Ceratopsidae) from the upper Campanian Judith River Formation, Montana, USA . Ishikawa . H. . Tsuihiji . T. . Manabe . M. . 2023 . Cretaceous Research . 151 . 105660 . 10.1016/j.cretres.2023.105660 . 2023CrRes.15105660I . 260046917 .
  85. Perle. A.. Maryańska. T.. Teresa Maryańska. Osmólska. H.. 1982. Goyocephale lattimorei gen. et sp. n., a new flat -headed pachycephalosaur (Ornithlschia, Dinosauria) from the Upper Cretaceous of Mongolia. Acta Palaeontologica Polonica. 27. 1–4. 115–127.
  86. Mateus. O.. 2008. Two ornithischian dinosaurs renamed: Microceratops Bohlin 1953 and Diceratops Lull 1905. Journal of Paleontology. 82. 2. 423. 10.1666/07-069.1. 86021954.
  87. 10.1139/e79-104 . Notes on pachycephalosaurid dinosaurs (Reptilia: Ornithischia) from North America, with comments on their status as ornithopods . 1979 . Wall . William P. . Galton . Peter M. . Canadian Journal of Earth Sciences . 16 . 6 . 1176–1186 . 1979CaJES..16.1176W .
  88. Dyer . Aaron D. . Powers . Mark J. . Currie . Philip J. . 2023 . Problematic putative pachycephalosaurids: Synchrotron µCT imaging shines new light on the anatomy and taxonomic validity of Gravitholus albertae from the Belly River Group (Campanian) of Alberta, Canada . Vertebrate Anatomy Morphology Palaeontology . en . 10 . 1 . 65–110 . 10.18435/vamp29388 . 257046495 . 2292-1389. free .
  89. Book: Ryan . M.J. . Micucci . L. . Rizo . H. . Sullivan . C. . Lee . Y.-N. . Evans . D.C. . 2023 . New Late Cretaceous leptoceratopsid (Dinosauria: Ceratopsia) from the Oldman Formation (Campanian) of Alberta, Canada . Lee . Y.-N. . Windows into Sauropsid and Synapsid Evolution: Essays in Honor of Prof. Louis L. Jacobs . Dinosaur Science Center Press . Seoul . 978-89-5708-358-1 . 151–165.
  90. Michael J. . Ryan . David C. . Evans . Philip J. . Currie . Caleb M. . Brown . Don . Brinkman . 2012 . New leptoceratopsids from the Upper Cretaceous of Alberta, Canada . Cretaceous Research . 35 . 69–80 . 10.1016/j.cretres.2011.11.018 . 2012CrRes..35...69R .
  91. Jin . Liyong . . A New Basal Neoceratopsian Dinosaur from the Middle Cretaceous of Jilin Province, China . Acta Geologica Sinica . 2009 . 10.1111/j.1755-6724.2009.00023.x . Zan . Shuqin . Godefroit . Pascal . 83 . 2 . 200. 129656123 .
  92. WANG. Guodong. CHENG. Rihui. WANG. Pujun. GAO. Youfeng. WANG. Chengshan. REN. Yanguang. HUANG. Qinghua. March 2009. Description of Cretaceous Sedimentary Sequence of the Quantou Formation Recovered by CCSD-SK-Is Borehole in Songliao Basin: Lithostratigraphy, Sedimentary Facies and Cyclic Stratigraphy. Earth Science Frontiers. 16. 2. 324–338. 10.1016/s1872-5791(08)60078-0. 2009ESF....16..324W . 1872-5791.
  93. Maryańska. T.. Osmólska. H.. 1974. Pachycephalosauria, a new suborder of ornithischian dinosaurs. Palaeontologica Polonica. 30. 45−102.
  94. Longrich, N.R., Sankey, J. and Tanke, D. (2010). "Texacephale langstoni, a new genus of pachycephalosaurid (Dinosauria: Ornithischia) from the upper Campanian Aguja Formation, southern Texas, USA." Cretaceous Research, .
  95. Evans. D. C.. Hayashi. S.. Chiba. K.. Watabe. M.. Ryan. M. J.. Lee. Y.-N.. Currie. P. J.. Tsogtbaatar. K.. Barsbold. R.. 2018. Morphology and histology of new cranial specimens of Pachycephalosauridae (Dinosauria: Ornithischia) from the Nemegt Formation, Mongolia. Palaeogeography, Palaeoclimatology, Palaeoecology. 494. 121−134. 2018PPP...494..121E. 10.1016/j.palaeo.2017.11.029.
  96. You, H., and X. Xu. 2005. An adult specimen of Hongshanosaurus houi (Dinosauria: Psittacosauridae) from the Lower Cretaceous of western Liaoning Province, China. Acta Geologica Sinica 79: 168–173.
  97. Fenglu . Han . Catherine A. . Forster . James M. . Clark . Xing . Xu . Xu Xing (paleontologist) . 9 December 2015 . A New Taxon of Basal Ceratopsian from China and the Early Evolution of Ceratopsia . PLOS One. 10 . 12 . e0143369 . 10.1371/journal.pone.0143369 . 26649770 . 4674058. 2015PLoSO..1043369H . free .
  98. https://paleobiodb.org/classic/displayStrata?geological_group=Wangshi&group_formation_member=Wangshi Wangshi Group
  99. Yiming . He . Peter J. . Makovicky . Kebai . Wang . Shuqing . Chen . Corwin . Sullivan . Fenglu . Han . Xing XuMichael J. Ryan . David C. . Evans . Philip J. . Currie . Caleb M. . Brown . Don . Brinkman . 2015 . A New Leptoceratopsid (Ornithischia, Ceratopsia) with a Unique Ischium from the Upper Cretaceous of Shandong Province, China . PLOS ONE . 10 . 12 . e0144148 . 10.1371/journal.pone.0144148 . 26701114 . 4689537 . 2015PLoSO..1044148H . free .
  100. Longrich . N. R. . 10.3374/014.054.0103 . Judiceratops tigris, a New Horned Dinosaur from the Middle Campanian Judith River Formation of Montana . Bulletin of the Peabody Museum of Natural History . 54 . 51–65 . 2013 . 129801786 .
  101. Lee . Yuong-Nam . Ryan, Michael J. . Kobayashi, Yoshitsugu . 2011 . The first ceratopsian dinosaur from South Korea . Naturwissenschaften . 98 . 1 . 39–49 . 10.1007/s00114-010-0739-y . 21085924. 2011NW.....98...39L . 23743082 .
  102. L. A. Nessov, 1995, Dinozavri severnoi Yevrazii: Novye dannye o sostave kompleksov, ekologii i paleobiogeografii, Institute for Scientific Research on the Earth's Crust, St. Petersburg State University, St. Petersburg pp. 1-156
  103. B. Brown. 1914. Leptoceratops, a new genus of Ceratopsia from the Edmonton Cretaceous of Alberta. Bulletin of the American Museum of Natural History 33(36):567-580
  104. Xu, X.. Makovicky, P.J.. Wang, X. Norell, M.A.. You, H.. amp. 2002. A ceratopsian dinosaur from China and the early evolution of Ceratopsia.. Nature . 416. 314–317. 10.1038/416314a. 11907575. 6878. 2002Natur.416..314X. 4322101.
  105. Chang . S.-C. . Gao . K.-Q. . Zhou . Z.-F. . Jourdan . F. . 2017 . New chronostratigraphic constraints on the Yixian Formation with implications for the Jehol Biota . Palaeogeography, Palaeoclimatology, Palaeoecology . 10.1016/j.palaeo.2017.09.026 . 487 . 399–406. 2017PPP...487..399C .
  106. Loewen . Mark A. . Sertich . Joseph J. W. . Sampson . Scott . Scott D. Sampson . O’Connor . Jingmai K. . Jingmai O'Connor . Carpenter . Savhannah . Sisson . Brock . Øhlenschlæger . Anna . Farke . Andrew A. . Makovicky . Peter J. . Longrich . Nick . Evans . David C. . David C. Evans (paleontologist) . 20 June 2024 . Lokiceratops rangiformis gen. et sp. nov. (Ceratopsidae: Centrosaurinae) from the Campanian Judith River Formation of Montana reveals rapid regional radiations and extreme endemism within centrosaurine dinosaurs . . en . 12 . e17224 . 10.7717/peerj.17224 . 2167-8359 . free. 38912046 . 11193970 .
  107. Eric K. . Lund . Patrick M. . O'Connor . Mark A. . Loewen . Zubair A. . Jinnah . 2016 . A New Centrosaurine Ceratopsid, Machairoceratops cronusi gen et sp. nov., from the Upper Sand Member of the Wahweap Formation (Middle Campanian), Southern Utah . PLOS ONE . 11 . 5 . e0154403 . 10.1371/journal.pone.0154403 . 27192148 . 4871575. 2016PLoSO..1154403L . free .
  108. You. H.. Dong. Z.. 2003. A New Protoceratopsid (Dinosauria: Neoceratopsia) from the Late Cretaceous of Inner Mongolia, China. Acta Geologica Sinica (English Edition). 77. 3. 299−303. 10.1111/j.1755-6724.2003.tb00745.x. free.
  109. Godefroit . Pascal . Currie, Philip J. . Li . Hong . Shang Chang Yong . Dong . Zhi-ming . 2008 . A new species of Velociraptor (Dinosauria: Dromaeosauridae) from the Upper Cretaceous of northern China . Journal of Vertebrate Paleontology . 28 . 2 . 432–438 . 10.1671/0272-4634(2008)28[432:ANSOVD]2.0.CO;2. 129414074 .
  110. Alifanov. V. R.. 2008. The Tiny Horned Dinosaur Gobiceratops minutus gen. et sp. nov. (Bagaceratopidae, Neoceratopsia) from the Upper Cretaceous of Mongolia. Paleontological Journal. 42. 6. 621–633. 10.1134/S0031030108060087. 129893753 .
  111. Ryan, Michael J.; Russell, Anthony P., and Hartman, Scott. (2010). "A New Chasmosaurine Ceratopsid from the Judith River Formation, Montana", In: Michael J. Ryan, Brenda J. Chinnery-Allgeier, and David A. Eberth (eds), New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium, Indiana University Press, 656 pp. .
  112. Dalman. Sebastian G.. Lucas. Spencer G.. Jasinki. Steven G.. Lichtig. Asher J.. Dodson. Peter. 2021. The oldest centrosaurine: a new ceratopsid dinosaur (Dinosauria: Ceratopsidae) from the Allison Member of the Menefee Formation (Upper Cretaceous, early Campanian), northwestern New Mexico, USA. PalZ. 95. 2. 291–335. 10.1007/s12542-021-00555-w. 234351502.
  113. 10.1007/s00114-014-1183-1. A new chasmosaurine from northern Laramidia expands frill disparity in ceratopsid dinosaurs. Naturwissenschaften. 2014. Ryan . M. J. . Evans . D. C. . Currie . P. J. . Loewen . M. A. . 101 . 6. 505–512 . 24859020. 2014NW....101..505R. 13957187.
  114. Z. Dong. (1978). [A new genus of Pachycephalosauria from Laiyang, Shantung]. Vertebrata PalAsiatica 16(4):225-228.
  115. Ryan . M.J. . 2006 . The status of the problematic taxon Monoclonius (Ornithischia: Ceratopsidae) and the recognition of adult-sized dinosaur taxa . Geological Society of America Abstracts with Programs . 38 . 4. 62 .
  116. Web site: †Centrosaurus apertus Lambe 1905 (ceratopsid). The Paleobiology Database. 2023-05-21.
  117. Sternberg . C.M. . 1940 . Ceratopsidae from Alberta . Journal of Paleontology . 14 . 5. 468–480 .
  118. Web site: †Centrosaurus apertus Lambe 1905 (ceratopsid). The Paleobiology Database. 2023-05-21.
  119. Cope . E. D. . 1889 . The horned dinosaurs of the Laramie . The American Naturalist . 23 . 272. 715–717 . 10.1086/274991. free .
  120. C. M. Sternberg. 1951. Complete skeleton of Leptoceratops gracilis Brown from the Upper Edmonton Member on Red Deer River, Alberta. National Museum of Canada Bulletin 123:225-255
  121. Brown . B. . Schlaikjer . E. M. . 1942 . The skeleton of Leptoceratops with the description of a new species . American Museum Novitates . 1169 . 1–15 .
  122. 10.1038/srep14190 . A psittacosaurid-like basal neoceratopsian from the Upper Cretaceous of central China and its implications for basal ceratopsian evolution . 2015 . Zheng . Wenjie . Jin . Xingsheng . Xu . Xing . Scientific Reports . 5 . 4585677 .
  123. 2010 . Nasutuceratops titusi, a new basal centrosaurine dinosaur (Ornithischia: Ceratopsidae) from the upper cretaceous Kaiparowits Formation, Southern Utah . Department of Geology and Geophysics University of Utah . 172 pp . Eric Karl Lund . dead . https://web.archive.org/web/20150402103645/http://content.lib.utah.edu:81/cgi-bin/showfile.exe?CISOROOT=%2Fetd3&client_addr=5.103.58.97&CISOPTR=528&filename= . 2015-04-02 .
  124. M. A. Getty, M. A. Loewen, E. M. Roberts, A. L. Titus, and S. D. Sampson. 2010. Taphonomy of horned dinosaurs (Ornithischia: Ceratopsidae) from the late Campanian Kaiparowits Formation, Grand Staircase–Escalante National Monument, Utah. In M. J. Ryan, B. J. Chinnery-Allgeier, D. A. Eberth (eds.), New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium. Indiana University Press, Bloomington 478-494
  125. Fowler . D.W. . Freedman Fowler . E.A. . Transitional evolutionary forms in chasmosaurine ceratopsid dinosaurs: evidence from the Campanian of New Mexico . PeerJ . 2020 . 8 . e9251 . 10.7717/peerj.9251. 32547873 . 7278894 . free .
  126. Hatcher . John Bell . 1904 . Two new Ceratopsia from the Laramie of Converse County, Wyoming . American Journal of Science . Series 4. 4 . 120 . 413–419 . 10.2475/ajs.s4-20.120.413.
  127. Farke . A. A. . Claessens. Leon. 10.1371/journal.pone.0016196 . Anatomy and Taxonomic Status of the Chasmosaurine Ceratopsid Nedoceratops hatcheri from the Upper Cretaceous Lance Formation of Wyoming, U.S.A . PLOS ONE . 6 . 1 . e16196 . 2011 . 21283763. 3024410 . 2011PLoSO...616196F . free .
  128. Scannella. John B.. Horner, John R.. Claessens, Leon. 2011. Nedoceratops: An Example of a Transitional Morphology. PLOS ONE. 6. 12. e28705. 10.1371/journal.pone.0028705. 3241274. 22194891. 2011PLoSO...628705S. free.
  129. Web site: Notoceratops Tapia, 1918 †. Rees. Tony. 2006-09-20. Interim Register of Marine and Nonmarine Genera (IRMNG). 2023-05-21.
  130. Ibiricu . Lucio M. . Martínez . Rubén D. . Lamanna . Matthew C. . Casal . Gabriel A. . Luna . Marcelo . Harris . Jerald D. . Lacovara . Kenneth J. . August 2010 . A Medium-Sized Ornithopod (Dinosauria: Ornithischia) from the Upper Cretaceous Bajo Barreal Formation of Lago Colhué Huapi, Southern Chubut Province, Argentina . Annals of Carnegie Museum . 79 . 1 . 39–50 . 10.2992/007.079.0103 . 53407321 . 0097-4463.
  131. Book: Patagonian Mesozoic reptiles . Coria. R. Cambiaso. A. . 2007 . Indiana University Press . 9780253348579 . Gasparini Z, Salgado L, Coria R . Bloomington . 167–187 . en . Ornithischia . 758738548.
  132. Tapia, A. (1918), "Una mandibula de dinosaurio procedente de Patagonia", Physis 4: 369–370
  133. Robert M. Sullivan and Spencer G. Lucas, 2010, "A New Chasmosaurine (Ceratopsidae, Dinosauria) from the Upper Cretaceous Ojo Alamo Formation (Naashoibito Member), San Juan Basin, New Mexico", In: Ryan, M.J., Chinnery-Allgeier, B.J., and Eberth, D.A. (eds.) New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium, Bloomington, Indiana University Press, 656 pp.
  134. Sullivan . Robert M. . Lucas . Spencer G. . 2006 . The Kirtlandian land-vertebrate "age"-faunal composition, temporal position and biostratigraphic correlation in the nonmarine Upper Cretaceous of western North America . New Mexico Museum of Natural History and Science Bulletin . 35 . 7–29.
  135. Holtz, Thomas R. Jr. (2011) Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages, Winter 2010 Appendix.
  136. Nicholas R. . Longrich . 2011 . Titanoceratops ouranos, a giant horned dinosaur from the Late Campanian of New Mexico . Cretaceous Research . 32 . 3 . 264–276 . 10.1016/j.cretres.2010.12.007. 2011CrRes..32..264L .
  137. Wall. W. P.. Galton. P. M.. Notes on pachycephalosaurid dinosaurs (Reptilia: Ornithischia) from North America, with comments on their status as ornithopods. Canadian Journal of Earth Sciences. 1979. 16. 6. 1176–1186. 10.1139/e79-104. 1979CaJES..16.1176W.
  138. Williamson. T. E.. Carr. T. D.. A new genus of derived pachycephalosaurian from western North America. Journal of Vertebrate Paleontology. 22. 4. 779–801. 10.1671/0272-4634(2002)022[0779:ANGODP]2.0.CO;2. 2003. 86112901 .
  139. Brown . Barnum . Barnum Brown . Schlaikjer, Erich M. . 1943 . A study of the troödont dinosaurs with the description of a new genus and four new species . Bulletin of the American Museum of Natural History . 82 . 5 . 115–150 . 2246/387 .
  140. Galton . Peter M. . Peter Galton . Sues, Hans-Dieter . 1983 . New data on pachycephalosaurid dinosaurs (Reptilia: Ornithischia) from North America . Canadian Journal of Earth Sciences . 20 . 3 . 462–472 . 10.1139/e83-043 . 1983CaJES..20..462G .
  141. Sternberg . C. M. . 1950 . Pachyrhinosaurus canadensis, representing a new family of the Ceratopsia, from southern Alberta . National Museum of Canada Bulletin . 118 . 109–120 .
  142. Book: Currie . Philip J. . Langston Jr. . Wann . Tanke . Darren H. . A New Horned Dinosaur from an Upper Cretaceous Bone Bed in Alberta . 2008 . A new species of Pachyrhinosaurus (Dinosauria, Ceratopsidae) from the Upper Cretaceous of Alberta, Canada . Canadian Science Publishing . 10.1139/9780660198194 . 9780660198194 . 2023-05-22.
  143. Anthony R. . Fiorillo . Ronald S. . Tykoski . 2012 . A new species of the centrosaurine ceratopsid Pachyrhinosaurus from the North Slope (Prince Creek Formation: Maastrichtian) of Alaska . Acta Palaeontologica Polonica . 57 . 3 . 561–573 . 10.4202/app.2011.0033 . free .
  144. Longrich, N., 2014, "The horned dinosaurs Pentaceratops and Kosmoceratops from the upper Campanian of Alberta and implications for dinosaur biogeography", Cretaceous Research, 51: 292-308
  145. Mallon. Jordan C. . Ott. Christopher J.. Larson. Peter L.. Iuliano. Edward M.. Evans. David C. . 2016 . Spiclypeus shipporum gen. et sp. nov., a Boldly Audacious New Chasmosaurine Ceratopsid (Dinosauria: Ornithischia) from the Judith River Formation (Upper Cretaceous: Campanian) of Montana, USA . PLOS ONE . 11 . 5 . e0154218 . 10.1371/journal.pone.0154218 . 27191389 . 2016PLoSO..1154218M . 4871577 . free .
  146. C. Wiman, 1930, "Über Ceratopsia aus der Oberen Kreide in New Mexico", Nova Acta Regiae Societatis Scientiarum Upsaliensis, Series 4 7(2): 1-19
  147. H.F. Osborn, 1923, "A new genus and species of Ceratopsia from New Mexico, Pentaceratops sternbergii, American Museum Novitates 93: 1-3
  148. Horner . John R. . Goodwin . Mark B. . Evans . David C. . 2023-04-14 . A new pachycephalosaurid from the Hell Creek Formation, Garfield County, Montana, U.S.A. . Journal of Vertebrate Paleontology . 42. 4. e2190369 . 10.1080/02724634.2023.2190369 . 258154892 . 0272-4634.
  149. Web site: American Museum of Natural History - Division of Paleontology - FR 3950.
  150. Dodson, P., Forster, C.A., and Sampson, S.D. (2004). Ceratopsidae. In: Weishampel, D.B., Dodson, P., and Osmólska, H. (eds.). The Dinosauria (second edition). University of California Press:Berkeley, 494-513. .
  151. Chinnery . Brenda . 2004-09-10 . https://doi.org/10.1671/0272-4634(2004)024[0572:DOPPGE2.0.CO;2 Description of Prenoceratops pieganensis gen. et sp. nov. (Dinosauria: Neoceratopsia) from the Two Medicine Formation of Montana ]. Journal of Vertebrate Paleontology . 24 . 3 . 572–590 . 10.1671/0272-4634(2004)024[0572:DOPPGE]2.0.CO;2 . 86541770 . 0272-4634.
  152. Web site: Meet Frannie the Prenoceratops . The Children's Museum of Indianapolis . 2022-02-16.
  153. Granger. W. W.. Gregory. W. K.. 1923. Protoceratops andrewsi, a pre-ceratopsian dinosaur from Mongolia. American Museum of Natural History Novitates. 72. 1−9. 2246/4670. free.
  154. Lambert. O.. Godefroit. P.. Li. H.. Shang. C.-Y.. Dong. Z.. 2001. A new Species of Protoceratops (Dinosauria, Neoceratopsia) from the Late Cretaceous of Inner Mongolia (P. R. China). Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Sciences de la Terre. 71. 5−28.
  155. James G. . Napoli . Tyler . Hunt . Gregory M. . Erickson . Mark A. . Norell . 2019 . Psittacosaurus amitabha, a new species of ceratopsian dinosaur from the Ondai Sayr locality, central Mongolia . American Museum Novitates . 3932 . 1–36 . 10.1206/3932.1 . 2246/6953 . 199571348 .
  156. Mayr . Gerald . Peters . Plodowski . Stephan . D. . Gerhard . Vogel . Olaf . 2002 . Bristle-like integumentary structures at the tail of the horned dinosaur Psittacosaurus . Naturwissenschaften . 89 . 8. 361–365 . 10.1007/s00114-002-0339-6 . 12435037. 2002NW.....89..361M . 17781405 .
  157. Web site: Taxonomy, Cranial Morphology, and Relationships of Parrot-Beaked Dinosaurs (Ceratopsia: Psittacosaurus) . Sereno . Paul C. . 2010 . New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium . Indiana University Press, Bloomington and Indianapolis, IN.
  158. Changfu . Zhou . Keqin . Gao . Fox . Richard C. . Shuihua . Chen . 2006 . A new species of Psittacosaurus (Dinosauria: Ceratopsia) from the Early Cretaceous Yixian Formation, Liaoning, China . . 15 . 100–114 . 10.1016/j.palwor.2005.11.001.
  159. Sereno. P. C.. Zhao. X.. Brown. L.. Tan. L.. 2007. New psittacosaurid highlights skull enlargement in horned dinosaurs. Acta Palaeontologica Polonica. 52. 2. 275–284.
  160. Young . C. C. . 1931 . On some new dinosaurs from western Suiyuan, Inner Mongolia . Bulletin of the Geological Society of China . 11 . 3. 259–266 . 10.1111/j.1755-6724.1932.mp11003005.x.
  161. Buffetaut, Eric; Suteethorn, Varavudh (1992). "A new species of the ornithischian dinosaur Psittacosaurus from the Early Cretaceous of Thailand". Palaeontology. 35: 801–812.
  162. Averianov . Alexander O. . Voronkevich . Alexei V. . Leshchinskiy . Sergei V. . Fayngertz . Alexei V. . 2006 . A ceratopsian dinosaur Psittacosaurus sibiricus from the Early Cretaceous of West Siberia, Russia and its phylogenetic relationships . Journal of Systematic Palaeontology . 4 . 4. 359–395 . 10.1017/s1477201906001933. 84569578 .
  163. Golovneva. L. B.. Shchepetov. S. V.. April 2010. Phytostratigraphy of Albian-Cenomanian sediments in the Kiya River basin (the Chulym-Yenisei area of the west Siberian lowland). Stratigraphy and Geological Correlation. 18. 2. 153–165. 10.1134/s0869593810020048. 2010SGC....18..153G. 140540821. 0869-5938.
  164. https://paleobiodb.org/classic/displayStrata?geological_group=Qingshan&group_formation_member=Qingshan Qingshan Group
  165. Sereno . Paul C. . Xijin . Zhao . 1988 . Psittacosaurus xinjiangensis (Ornithischia: Ceratopsia), a new psittacosaur from the Lower Cretaceous of northwestern China . Journal of Vertebrate Paleontology . 8 . 4. 353–365 . 10.1080/02724634.1988.10011724. 1988JVPal...8..353S .
  166. Brown. Caleb M.. Henderson. Donald M.. A new horned dinosaur reveals convergent evolution in cranial ornamentation in Ceratopsidae. Current Biology. June 4, 2015. 10.1016/j.cub.2015.04.041. 26051892. 25. 12 . 1641–8. free.
  167. Royal Tyrrell Museum of Palaeontology . Royal Tyrrell Museum of Palaeontology . RoyalTyrrell . 1335973278381350912 . December 7, 2020 . First up is our Regaliceratops 'Hellboy.' Its short, stubby horns led Darren Tanke, who prepared the specimen, to name it after comic book character Hellboy © Mike Mignola. It also references the challenging process of excavating and preparing the specimen, which spanned 10 years https://t.co/N2p0K1Az9X . en . December 21, 2022 . https://web.archive.org/web/20201207155144/https://twitter.com/RoyalTyrrell/status/1335973278381350912 . December 7, 2020 . live.
  168. T. Rich and P. Vickers-Rich. 2003. Protoceratopsian? ulnae from Australia. Records of the Queen Victoria Museum Launceston 113:1-12
  169. Rozadilla. Sebastián. Agnolín. Federico. Manabe. Makoto. Tsuihiji. Takanobu. Novas. Fernando E.. 2021-09-01. Ornithischian remains from the Chorrillo Formation (Upper Cretaceous), southern Patagonia, Argentina, and their implications on ornithischian paleobiogeography in the Southern Hemisphere. Cretaceous Research. en. 125. 104881. 10.1016/j.cretres.2021.104881. 2021CrRes.12504881R . 0195-6671.
  170. 10.1080/03115518.2014.894809 . Serendipaceratops arthurcclarkei Rich & Vickers-Rich, 2003 is an Australian Early Cretaceous ceratopsian . 2014 . Rich . Thomas H. . Kear . Benjamin P. . Sinclair . Robert . Chinnery . Brenda . Carpenter . Kenneth . McHugh . Mary L. . Vickers-Rich . Patricia . Alcheringa: An Australasian Journal of Palaeontology . 38 . 4 . 456–479 .
  171. Dalman . S.G. . Lucas . S.G. . Jasinski . S.E. . Longrich . N.R. . Sierraceratops turneri, a new chasmosaurine ceratopsid from the Hall Lake Formation (Upper Cretaceous) of south-central New Mexico . Cretaceous Research. 2022. 130. Article 105034. 10.1016/j.cretres.2021.105034. 2022CrRes.13005034D . 244210664 .
  172. Description and revised diagnosis of Asia's first recorded pachycephalosaurid, Sinocephale bexelli gen. nov., from the Upper Cretaceous of Inner Mongolia, China . Evans . David . Brown . Caleb M. . You . Hailu . Campione . Nicolás E. . Canadian Journal of Earth Sciences . 2021 . 58 . 10 . 981–992 . 10.1139/cjes-2020-0190. 2021CaJES..58..981E . 244227050 .
  173. Xu. X.. Wang. K.. Zhao. X.. Li. D.. 2010. First ceratopsid dinosaur from China and its biogeographical implications. Chinese Science Bulletin. 55. 16. 1631–1635. 10.1007/s11434-009-3614-5. 2010ChSBu..55.1631X. 128972108.
  174. Carr Thomas D. . Williamson Thomas E. . 2002 . A new genus of highly derived pachycephalosaurian from western North America . 10.1671/0272-4634(2002)022[0779:angodp]2.0.co;2 . Journal of Vertebrate Paleontology . 22 . 4. 779–801 . 86112901 .
  175. Mallon Jordan C. . Evans David C. . Tokaryk Tim T. . Currie Margaret L. . First pachycephalosaurid (Dinosauria: Ornithischia) from the Frenchman Formation (upper Maastrichtian) of Saskatchewan, Canada . Cretaceous Research . 2015 . 56 . 426–431 . 10.1016/j.cretres.2015.06.005 . 2015CrRes..56..426M .
  176. Web site: †Sphaerotholus edmontonensis Brown and Schlaikjer 1943 (ornithischian) . Paleobiology Database . 2023-05-23.
  177. Woodruff . D.C. . Goodwin . M.B. . Lyson . T.R. . Evans . D.C. . 2021 . Ontogeny and variation of the pachycephalosaurine dinosaur Sphaerotholus buchholtzae, and its systematics within the genus . Zoological Journal of the Linnean Society . 193 . 2 . 563–601 . 10.1093/zoolinnean/zlaa179.
  178. 10.1002/spp2.1535 . Two new species of small-bodied pachycephalosaurine (Dinosauria, Marginocephalia) from the uppermost Cretaceous of North America suggest hidden diversity in well-sampled formations . 2023 . Woodruff . D. Cary . Schott . Ryan K. . Evans . David C. . Papers in Palaeontology . 9 . 6 .
  179. Farke . Andrew A. . Michael J. . Ryan . Paul M. . Barrett . Darren H. . Tanke . Dennis R. . Braman . Mark A. . Loewen . Mark R. . Graham . 2011 . A new centrosaurine from the Late Cretaceous of Alberta, Canada, and the evolution of parietal ornamentation in horned dinosaurs . Acta Palaeontologica Polonica . 56 . 4 . 691–702 . 10.4202/app.2010.0121. free .
  180. Jasinski, S. E.. Sullivan, R. M. . 2011 . Re-evaluation of pachycephalosaurids from the Fruitland-Kirtland transition (Kirtlandian, late Campanian), San Juan Basin, New Mexico, with a description of a new species of Stegoceras and a reassessment of Texascephale langstoni . Fossil Record 3. New Mexico Museum of Natural History and Science, Bulletin . 53 . 202–215 .
  181. Book: Jasinski . S. E. . Sullivan . R. M. . The validity of the Late Cretaceous pachycephalosaurid Stegoceras novomexicanum (Dinosauria: Pachycephalosauridae) . Sullivan . Robert M. . Lucas . Spencer G. . Fossil Record 5: Bulletin 74 . 2016 . New Mexico Museum of Natural History and Science . 107–116 . https://books.google.com/books?id=bMJQDwAAQBAJ&pg=PA107 .
  182. Williamson. T. E.. Brusatte. S. L.. Pachycephalosaurs (Dinosauria: Ornithischia) from the Upper Cretaceous (upper Campanian) of New Mexico: A reassessment of Stegoceras novomexicanum. Cretaceous Research. 2016. 62. 29–43. 10.1016/j.cretres.2016.01.012. 2016CrRes..62...29W . free.
  183. A new, transitional centrosaurine ceratopsid from the Upper Cretaceous Two Medicine Formation of Montana and the evolution of the Styracosaurus-line' dinosaurs . Wilson . John P. . Ryan . Michael J. . Evans . David C. . Royal Society Open Science. 2020 . 7 . 4 . 200284 . 10.1098/rsos.200284. 32431910 . 7211873 . 2020RSOS....700284W . free .
    • Hermann Schmidt, 1969, "Stenopelix valdensis H. v. Meyer, der kleine Dinosaurier des norddeutschen Wealden", Paläontologische Zeitschrift 43(3/4): 194-198
    • R. J. Butler and R. M. Sullivan, 2009, "The phylogenetic position of Stenopelix valdensis from the Lower Cretaceous of Germany and the early fossil record of Pachycephalosauria", Acta Palaeontologica Polonica 54(1): 21-34
  186. Giffin . Emily B. . Gabriel . Diane L. . Johnson . Rolf E. . A New Pachycephalosaurid Hell Creek Formation of Montana . Journal of Vertebrate Paleontology . 22 January 1988 . 7 . 4 . 398–407 . 13 November 2020 . Taylor & Francis, Ltd.. 10.1080/02724634.1988.10011672 . 4523163 .
  187. Book: Paul, Gregory S. . 2010 . The Princeton Field Guide to Dinosaurs . registration . Princeton University Press . Princeton, NJ . 244 . 978-0-691-13720-9.
  188. Lambe . L.M. . 1913 . A new genus and species from the Belly River Formation of Alberta . Ottawa Naturalist . 27 . 109–116.
  189. Andrew T. McDonald & John R. Horner, (2010). "New Material of "Styracosaurus" ovatus from the Two Medicine Formation of Montana". Pages 156–168 in: Michael J. Ryan, Brenda J. Chinnery-Allgeier, and David A. Eberth (eds), New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium, Indiana University Press, Bloomington and Indianapolis, IN.
  190. A new, transitional centrosaurine ceratopsid from the Upper Cretaceous Two Medicine Formation of Montana and the evolution of the "Styracosaurus-line" dinosaurs . Wilson . John P. . Ryan . Michael J. . Evans . David C. . Royal Society Open Science. 2020 . 7 . 4 . 200284 . 10.1098/rsos.200284. 32431910 . 7211873 . 2020RSOS....700284W . free .
  191. Brown. Barnum. Erich Maren Schlaikjer . The skeleton of Styracosaurus with the description of a new species. American Museum Novitates. 955. 12. 1937. 2246/2191.
  192. Christopher J. Ott and Peter L. Larson, 2010, "A New, Small Ceratopsian Dinosaur from the Latest Cretaceous Hell Creek Formation, Northwest South Dakota, United States: A Preliminary Description", In: Ryan, M.J., Chinnery-Allgeier, B.J., and Eberth, D.A. (eds.) New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium, Bloomington, Indiana University Press, 656 pp.
  193. Illies, Matthew M. Canoy, and Denver W. Fowler. "Triceratops with a kink: Co-ossification of five distal caudal vertebrae from the Hell Creek Formation of North Dakota." Cretaceous Research, 108 (2020): 104355.
  194. Longrich, N.R.. Sankey, J.. Tanke, D.. amp . 2010 . Texacephale langstoni, a new genus of pachycephalosaurid (Dinosauria: Ornithischia) from the upper Campanian Aguja Formation, southern Texas, USA . Cretaceous Research . 31 . 2 . 274–284 . 10.1016/j.cretres.2009.12.002. 2010CrRes..31..274L.
  195. Longrich . Nicholas R. . 2011 . Titanoceratops ouranos, a giant horned dinosaur from the late Campanian of New Mexico . Cretaceous Research . 32 . 3 . 264–276 . 10.1016/j.cretres.2010.12.007. 2011CrRes..32..264L .
  196. O.C. Marsh, 1891, "Notice of new vertebrate fossils", The American Journal of Science, series 3 42: 265-269
  197. Colbert, E.H. and J.D. Bump, 1947, "A skull of Torosaurus from South Dakota and a revision of the genus:, Proceedings of the Academy of Natural Sciences of Philadelphia, 99: 93–106
  198. 10.1080/02724634.2010.483632 . Torosaurus Marsh, 1891, is Triceratops Marsh, 1889 (Ceratopsidae: Chasmosaurinae): Synonymy through ontogeny . 2010 . Scannella . John B. . Horner . John R. . Journal of Vertebrate Paleontology . 30 . 4 . 1157–1168 .
  199. Longrich, N. R.. Field, D. J.. amp. 2012. Torosaurus is not Triceratops: Ontogeny in chasmosaurine ceratopsids as a case study in dinosaur taxonomy. PLoS ONE. 7. 2. e32623. 10.1371/journal.pone.0032623. 2012PLoSO...732623L. 22393425. 3290593. free.
  200. 10.1371/journal.pone.0081608 . free . Is Torosaurus Triceratops? Geometric Morphometric Evidence of Late Maastrichtian Ceratopsid Dinosaurs . 2013 . Maiorino . Leonardo . Farke . Andrew A. . Kotsakis . Tassos . Piras . Paolo . PLOS ONE . 8 . 11 . e81608 . 24303058 .
  201. D.A. Lawson, 1976, "Tyrannosaurus and Torosaurus, Maestrichtian dinosaurs from Trans-Pecos, Texas", Journal of Paleontology 50(1): 158-164
  202. Sternberg, C. M. (1949). "The Edmonton fauna and description of a new Triceratops from the Upper Edmonton member; phylogeny of the Ceratopsidae". National Museum of Canada Bulletin. 113: 33–46.
  203. Web site: †Triceratops horridus Marsh 1889 (ceratopsid) . The Paleobiology Database . 2023-05-24 .
  204. Web site: Triceratops alticornis (Marsh, 1889) . Cannon . George L. . 2022-06-13 . Smithsonian Institution . NMNH - Paleobiology Dept. . 2023-05-24.
  205. Web site: Triceratops calicornis Marsh, 1898 . Smithsonian Department of Paleobiology Collections . Smithsonian Institution . 2023-05-24 .
  206. Web site: Triceratops elatus Marsh, 1891 . Hatcher . John B. . 2022-06-13 . Smithsonian Institution . NMNH - Paleobiology Dept. . 2023-05-24.
  207. Schlaikjer, E. M. 1935. Contributions to the stratigraphy and paleontology of the Goshen Hole area, Wyoming. II. The Torrington member of the Lance formation and a study of the new Triceratops. Bulletin of the Museum of Comparative Zoology 76(2):29–68.
  208. O. C. Marsh. 1889. Notice of gigantic horned Dinosauria from the Cretaceous. American Journal of Science 38:173-175
  209. Web site: Triceratops galeus Marsh, 1889 . Cross . W. . 2021-10-01 . Smithsonian Institution . NMNH - Paleobiology Dept. . 2023-05-24 .
  210. Marsh . O.C. . 1889a . Notice of new American Dinosauria . American Journal of Science . 37 . 220 . 331–336 . 1889AmJS...37..331M . 10.2475/ajs.s3-37.220.331 . 131729220 . October 19, 2021 . September 29, 2018 . https://web.archive.org/web/20180929000453/http://ajs.library.cmu.edu/books/pages.cgi?call=AJS_1889_037_1889&layout=vol0%2Fpart0%2Fcopy0&file=00000339 . live .
  211. Web site: Wyoming Facts and Symbols - State of Wyoming.
  212. Forster . Catherine A. . 1996 . Species Resolution in Triceratops: Cladistic and Morphometric Approaches . Journal of Vertebrate Paleontology . Taylor & Francis, Ltd. . 16 . 2 . 259–270 . 10.1080/02724634.1996.10011313 . 4523716 . 1996JVPal..16..259F .
  213. Brown . Barnum . Kaisen . Peter C. . 1933 . A gigantic ceratopsian dinosaur, Triceratops maximus, new species. . American Museum Novitates . 649 . 1–9 . 2246/2064 . 2023-05-25.
  214. Web site: Triceratops obtusus Marsh, 1898 . Hatcher . Mr. John B. . 2022 . Smithsonian Institution . National Museum of Natural History . 2023-05-25.
  215. Marsh . O.C. . 1890 . Description of New Dinosaurian Reptiles . American Journal of Science . 39 . 229 . 81–87 . 10.5281/zenodo.4740015 . 2023-05-25.
  216. Lull . Richard Swann . 1867 . Skull of Triceratops serratus . Bulletin of the American Museum of Natural History . 19 . 30 . 685–695 . 2246/1509 . 2023-05-25.
  217. Web site: Triceratops sulcatus Marsh, 1890 . Hatcher . Mr. John B. . 2022-06-13 . Smithsonian Institution . NMNH - Paleobiology Dept. . 2023-05-25.
  218. 10.1007/s00114-009-0518-9 . Turanoceratops tardabilis—the first ceratopsid dinosaur from Asia . 2009 . Sues . Hans-Dieter . Averianov . Alexander . Naturwissenschaften . 96 . 5 . 645–652 .
  219. Maryańska. T.. Osmólska. H.. 1974. Pachycephalosauria, a new suborder of ornithischian dinosaurs. Palaeontologica Polonica. 30. 45−102.
  220. Baird . Donald . 1979 . The dome-headed dinosaur Tylosteus ornatus Leidy 1872 (Reptilia: Ornithischia: Pachycephalosauridae) . Notulae Naturae . 456 . 1–11.
  221. ICZN Opinion 1371, "Pachycephalosaurus Brown & Schlaikjer, 1943 and Troodon wyomingensis Gilmore, 1931 (Reptilia, Dinosauria): Conserved." Bulletin of Zoological Nomenclature, 43 (1): April 1986.
  222. Kurzanov. S. M.. 1992. Новый род протоцератопсид из позднего мела Монголии. A giant protoceratopsid from the Upper Cretaceous of Mongolia. Paleontological Journal. 81−93. ru.
  223. Foster . Catherine A. . 1993 . Taxomomic Validity of the Ceratopsid Dinosaur Ugrosaurus olsoni (Cobabe and Fastovsky) . Journal of Paleontology . 67 . 2 . 316–318 . 10.1017/S0022336000032273 . 1306003 . 1993JPal...67..316F . 133184183 . 2023-05-23.
  224. R. B. Holmes . C. A. Forster . M. J. Ryan . K. M. Shepherd . amp . 2001 . A new species of Chasmosaurus (Dinosauria: Ceratopsia) from the Dinosaur Park Formation of southern Alberta . Canadian Journal of Earth Sciences . 38 . 10 . 1423–1438 . 10.1139/cjes-38-10-1423 . 2001CaJES..38.1423H .
  225. Scott D.. Sampson. Mark A.. Loewen. Andrew A.. Farke. Eric M.. Roberts. Catherine A.. Forster. Catherine Forster. Joshua A.. Smith. Alan L.. Titus. amp . 2010 . New Horned Dinosaurs from Utah Provide Evidence for Intracontinental Dinosaur Endemism . PLOS ONE . 5 . 9 . e12292 . 10.1371/journal.pone.0012292 . 20877459 . 2929175. 2010PLoSO...512292S. free.
  226. Hou . Lian-Hai . 1977 . A new primitive Pachycephalosauria from Anhui, China.It is the second smallest dinosaur in world after microceratops.. Vertebrata PalAsiatica . 15 . 3 . 198–202 .
  227. Li. G.. Hirano. H.. Batten. D.J.. Wan. X.. Willems. H.. Zhang. X.. 2010. Biostratigraphic significance of spinicaudatans from the Upper Cretaceous Nanxiong Group in Guangdong, South China. Cretaceous Research. 31. 4. 387–395. 10.1016/j.cretres.2010.05.003. 2010CrRes..31..387L .
  228. Evans. David C.. Ryan. Michael J.. Cranial Anatomy of Wendiceratops pinhornensis gen. et sp. nov., a Centrosaurine Ceratopsid (Dinosauria: Ornithischia) from the Oldman Formation (Campanian), Alberta, Canada, and the Evolution of Ceratopsid Nasal Ornamentation. PLOS ONE. 2015. 10. 7. e0130007. 10.1371/journal.pone.0130007. 26154293. 4496092. 2015PLoSO..1030007E. free.
  229. Ryan. Michael J.. Evans. David C.. Shepherd. Kieran M.. A new ceratopsid from the Foremost Formation (middle Campanian) of Alberta. Canadian Journal of Earth Sciences. 2012. 49. 11. 1251–1262. 10.1139/e2012-056. 2012CaJES..49.1251R. free.
  230. 10.1111/j.1755-6724.2006.tb00265.x . A New Ceratopsian from the Upper Jurassic Houcheng Formation of Hebei, China . 2010 . Xijin . Zhao . Zhengwu . Cheng . Xing . XU . Makovicky . Peter J. . Acta Geologica Sinica - English Edition . 80 . 4 . 467–473 .
  231. Makovicky. P. J.. Norell. M. A.. 2006. Yamaceratops dorngobiensis, a New Primitive Ceratopsian (Dinosauria: Ornithischia) from the Cretaceous of Mongolia. American Museum Novitates. 3530. 1–42. 10.1206/0003-0082(2006)3530[1:YDANPC]2.0.CO;2. 2246/5808. free.
  232. 10.1098/rspb.2006.3566 . A basal ceratopsian with transitional features from the Late Jurassic of northwestern China . 2006 . Xu . Xing . Forster . Catherine A. . Clark . James M. . Mo . Jinyou . Proceedings of the Royal Society B: Biological Sciences . 273 . 1598 . 2135–2140 . 16901832 . 1635516 .
  233. Xing . Xu . Kebai . Wang . Xijin . Zhao . Corwin . Sullivan . Shuqing . Chen . 2010 . A New Leptoceratopsid (Ornithischia: Ceratopsia) from the Upper Cretaceous of Shandong, China and Its Implications for Neoceratopsian Evolution . PLOS ONE . 5 . 11 . e13835 . 10.1371/journal.pone.0013835 . 21079798 . 2973951. 2010PLoSO...513835X . free .
  234. Wolfe. D.G.. Kirkland. J. . 1998. Zuniceratops christopheri n. gen. & n. sp., a ceratopsian dinosaur from the Moreno Hill Formation (Cretaceous, Turonian) of west-central New Mexico. Lower and Middle Cretaceous Terrestrial Ecosystems, New Mexico Museum of Natural History and Science Bulletin. 24. 303–317.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "List of marginocephalian type specimens".

Except where otherwise indicated, Everything.Explained.Today is © Copyright 2009-2024, A B Cryer, All Rights Reserved. Cookie policy.