Allotheria Explained

Allotheria (meaning "other beasts", from the Greek Greek, Ancient (to 1453);: αλλός, –other and Greek, Ancient (to 1453);: θήριον, –wild animal) is an extinct clade of mammals known from the Mesozoic and early Cenozoic. Shared characteristics of the group are the presence of lower molariform teeth equipped with longitudinal rows of cusps[1] and enlarged incisors.[2] Typically, the canine teeth are also lost. Allotheria includes Multituberculata, Gondwanatheria (which may be part of Multituberculata, as the sister group to Cimolodonta),[3] [4] [5] [6] and probably Haramiyida,[7] (sometimes only including Euharamiyida) although some studies have recovered haramiyidans to be basal mammaliaforms unrelated to multituberculates.[8] Allotherians are often placed as crown group mammals, more closely related to living marsupials and placentals (Theria) than to monotremes or eutriconodonts, though some studies place the entirety of Allotheria outside of crown Mammalia.[9]

Further reading

Zofia Kielan-Jaworowska, Richard L. Cifelli, and Zhe-Xi Luo, Mammals from the Age of Dinosaurs: Origins, Evolution, and Structure (New York: Columbia University Press, 2004), 249.

Notes and References

  1. Review of the early allotherian mammals . P.M. . Butler . Acta Palaeontologica Polonica . 45 . 4 . 317–342 . 2000.
  2. Hoffmann . Simone . Beck . Robin M. D. . Wible . John R. . Rougier . Guillermo W. . Krause . David W. . 2020-12-14 . Phylogenetic placement of Adalatherium hui (Mammalia, Gondwanatheria) from the Late Cretaceous of Madagascar: implications for allotherian relationships . Journal of Vertebrate Paleontology . en . 40 . sup1 . 213–234 . 10.1080/02724634.2020.1801706 . 2020JVPal..40S.213H . 230968231 . 0272-4634.
  3. Krause . D. W. . Prasad . G. V. R. . von Koenigswald . W. . Sahni . A. . Grine . F. E. . Nature . 390 . 6659 . 504–507 . 10.1038/37343 . 1997 . Cosmopolitanism among Gondwanan Late Cretaceous mammals . 1997Natur.390..504K . 205025618 . dead . https://web.archive.org/web/20100611222233/http://www.anat.stonybrook.edu/dkrause/articles/1997_lavanify.pdf . 2010-06-11 .
  4. Krause . David W. . David W. Krause . Hoffmann . Simone . Wible . John R. . Kirk . E. Christopher . Schultz . Julia A. . von Koenigswald . Wighart . Groenke . Joseph R. . Rossie . James B. . O'Connor, Patrick M., Seiffert, Erik R., Dumont, Elizabeth R., Holloway, Waymon L., Rogers, Raymond R., Rahantarisoa, Lydia J., Kemp, Addison D., Andriamialison, Haingoson . 2014-11-05 . 1476-4687 . First cranial remains of a gondwanatherian mammal reveal remarkable mosaicism . Nature . . 515. 7528. 512–517. 10.1038/nature13922 . 2014Natur.515..512K . 25383528. 4395258 .
  5. Web site: Fossil From Dinosaur Era Reveals Big Mammal With Super Senses . https://web.archive.org/web/20141105183144/http://news.nationalgeographic.com/news/2014/11/141105-mammal-evolution-vintana-fossil-science/ . dead . November 5, 2014 . November 5, 2014 . Nadia . Drake . Nadia Drake . November 5, 2014 . nationalgeographic.com . National Geographic Society.
  6. News: Wilford . John Noble . Fossil's Unusual Size and Location Offer Clues in Evolution of Mammals . November 5, 2014 . . November 6, 2014 .
  7. Luo . Z.-X. . Kielan-Jaworowska . Z. . Cifelli . R.L. . 2002 . In quest for a phylogeny of Mesozoic mammals . Acta Palaeontologica Polonica . 47 . 1 . 1–78.
  8. Luo . Zhe-Xi . Gates. Stephen M. . Jenkins Jr. . Farish A. . Amaral . William W. . Shubin . Neil H. . Mandibular and dental characteristics of Late Triassic mammaliaform Haramiyavia and their ramifications for basal mammal evolution . 10.1073/pnas.1519387112 . 16 November 2015 . . E7101–E7109. 2015PNAS..112E7101L . 4697399 . 26630008 . 112. 51 . free .
  9. Mao . Fangyuan . Li . Zhiyu . Wang . Zhili . Zhang . Chi . Rich . Thomas . Vickers-Rich . Patricia . Meng . Jin . 2024-04-03 . Jurassic shuotheriids show earliest dental diversification of mammaliaforms . Nature . 628 . 8008 . 569–575 . en . 10.1038/s41586-024-07258-7 . 38570681 . 2024Natur.628..569M . 0028-0836.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Allotheria".

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