List of dinosaur specimens with documented taphonomic histories explained

This list of dinosaur specimens with documented taphonomic histories enumerates those fossil dinosaur specimens that have been subjected to focused efforts aimed at reconstructing the events following the animal's death and the processes by which its remains were preserved in the fossil record.

Ankylosaurs

Nodosaurids

TaxonNicknameCatalogue NumberInstitutionAgeUnitCountryDescription and Taphonomic HistoryImages
Borealopelta markmitchelliNot givenTMP 2011.033.0001Royal Tyrrell Museum of PalaeontologyAlbianMcMurray FormationCanadaIndividual preserving armor in life position, keratin sheaths, skin impressions, and stomach contents. The carcass was likely washed out to sea after death and buried in the seafloor.[2] [3]
Edmontonia rugosidensNot givenAMNH 5665American Museum of Natural HistoryMiddle CampanianDinosaur Park FormationCanadaExceptionally preserved articulated individual with skin impressions and armor in life position. The carcass was washed out to an aquatic setting, possibly a river channel, and buried.[4]

Ceratopsians

Psittacosaurids

TaxonNicknameCatalogue NumberInstitutionAgeUnitCountryDescription and Taphonomic HistoryImages
Psittacosaurus lujiatunensisNot givenWZSSM VF000011Weihai Ziguang Shi Yan School MuseumLower AptianYixian FormationChinaAssociation of a P. lujiatunensis and a Repenomamus robustus locked in combat that were buried alive.[5]
Psittacosaurus sp.Not givenDNHM D2156Dalian Museum of Natural HistoryLower AptianYixian FormationChinaAssemblage of 34 juveniles and one adult that were buried alive, possibly as a result of a collapsed burrow.[6]
Psittacosaurus sp.Not givenIVPP V14341Institute of Vertebrate Paleontology and PaleoanthropologyLower AptianYixian FormationChinaAssemblage of six juveniles that succumbed to a mudflow.[7] [8]
Psittacosaurus sp.Not givenSMF R 4970Senckenberg MuseumLower AptianYixian FormationChinaExceptionally preserved individual with numerous soft tissue impressions and color pattern.[9] [10] [11] [12] [13] [14] After death, its right arm was possibly scavenged by a Tianyulong.[15]

Protoceratopsids

TaxonNicknameCatalogue NumberInstitutionAgeUnitCountryDescription and Taphonomic HistoryImages
Bagaceratops indet.Not givenMPC-D 100/551BMongolian Palaeontological CenterMiddle CampanianDjadokhta FormationMongoliaCrouched individual that was scavenged after death by invertebrates.[16] [17]
Protoceratops andrewsiFighting DinosaursMPC-D 100/512Mongolian Palaeontological CenterMiddle CampanianDjadokhta FormationMongoliaPreserves Protoceratops andrewsi locked in combat with a Velociraptor mongoliensis.[18]
Protoceratops andrewsiFox site ProtoceratopsNot givenNot givenMiddle CampanianDjadokhta FormationMongoliaCrouched individual that was extensively scavenged after death by invertebrates.[19]
Protoceratops andrewsiNot givenMPC-D 100/526Mongolian Palaeontological CenterMiddle CampanianDjadokhta FormationMongoliaGroup of four juveniles buried alive by a strong sand-bearing event. Scavenging traces are present among individuals.[20]
Protoceratops andrewsiNot givenMPC-D 100/534Mongolian Palaeontological CenterMiddle CampanianDjadokhta FormationMongoliaTwo sub-adults buried alive by a strong sand-bearing event. Scavenging traces are present among individuals.
Protoceratops andrewsiStanding ProtoceratopsNot givenNot givenMiddle CampanianDjadokhta FormationMongoliaAn individual preserved in an upright position,[21] possibly product of burrowing behavior.[22]

Ornithopods

Hadrosaurs

TaxonNicknameCatalogue NumberInstitutionAgeUnitCountryDescription and Taphonomic HistoryImages
Brachylophosaurus canadensisLeonardoJRF 115HJudith River FoundationMiddle CampanianJudith River FormationUnited StatesExceptionally preserved individual that was rapidly covered with sediment after death.[23]
Edmontosaurus annectensTrachodon mummyAMNH 5060American Museum of Natural HistoryLate MaastrichtianLance FormationUnited StatesWell-preserved individual lying on its back with flexed limbs. After dehydration, the carcass likely was shortly buried by sediments transported by a river resulting in excellent preservation.[24]
Edmontosaurus annectensSenckenberg mummySMF R 4036Senckenberg MuseumLate MaastrichtianLance FormationUnited StatesIndividual preserved in a flexed posture. May have been quickly buried by sediments allowing exceptional preservation.[25] [26]
Hadrosauridae indet.Lizzie2000 P-02University of Alaska MuseumMiddle TuronianMatanuska FormationUnited StatesPartial remains of a juvenile. After death, the carcass was washed out to sea and sank to the seafloor where it got buried.[27]
Saurolophus angustirostrisNot givenMPC-D 100/764Mongolian Palaeontological CenterLate CampanianNemegt FormationMongoliaBlock of partially articulated juveniles. After an unknown case of death, the individuals decomposed during a wet summer season when they got buried by sediments transported by a river channel.[28]

Theropods

Oviraptorosaurs

TaxonNicknameCatalogue NumberInstitutionAgeUnitCountryDescription and Taphonomic HistoryImages
Citipati osmolskaeBig AuntieMPC-D 100/1004Mongolian Palaeontological CenterMiddle CampanianDjadokhta FormationMongoliaBrooding individual preserved on top of a nest.[29]
Citipati osmolskaeBig MamaMPC-D 100/979Mongolian Palaeontological CenterMiddle CampanianDjadokhta FormationMongoliaBrooding individual preserved on top of a nest.[30]
Khaan mckennaiRomeo and Juliet (alternatively Sid and Nancy)MPC-D 100/1002 and 100/1127Mongolian Palaeontological CenterMiddle CampanianDjadokhta FormationMongoliaTwo very complete individuals preserved in close association. The pair was likely interacting when they got buried by collapsed sand dunes.[31] [32]
Nemegtomaia barsboldiNot givenMPC-D 107/15Mongolian Palaeontological CenterLate CampanianBarun Goyot FormationMongoliaBrooding individual preserved on top of a nest.[33]
Oksoko avarsanNot givenMPC-D 102/110Mongolian Palaeontological CenterLate CampanianNemegt FormationMongoliaAssemblage of three individuals buried in life positions.[34]
Oviraptor philoceratopsNot givenAMNH 6517American Museum of Natural HistoryMiddle CampanianDjadokhta FormationMongoliaBrooding individual preserved on top of a nest.[35] [36]
Tongtianlong limosusNot givenDYM-2013-8Dongyang MuseumLate MaastrichtianNanxiong FormationChinaIndividual preserved with raised head and splayed arms, possibly died while trapped in mud.[37]

Notes and References

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  4. Mallon. J. C.. Henderson. D. M.. McDonough. C. M.. Loughry. W. J.. 2018. A bloat-and-float taphonomic model best explains the upside-down preservation of ankylosaurs. Palaeogeography, Palaeoclimatology, Palaeoecology. 497. 117–127. 2018PPP...497..117M. 10.1016/j.palaeo.2018.02.010. free.
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