See text Anomocephalus Otsheria Aulacocephalodon Kannemeyeria
Anomodontia is an extinct group of non-mammalian therapsids containing many species from the Permian and Triassic periods possibly continuing into the Early Cretaceous, most of which were toothless, possibly endothermic herbivores Anomodonts were very diverse during the Middle Permian, including primitive forms like Anomocephalus and Patranomodon and groups like Venyukovioidea, Dromasauria, and Dicynodontia Of these, only the dicynodonts survived beyond the Middle Permian Dicynodonts became the most successful and abundant of all herbivores in the Late Permian and Triassic, filling ecological niches ranging from large browsers down to small burrowers Few dicynodont families survived the Permian–Triassic extinction event, but one lineage evolved into large, stocky forms that remained the dominant terrestrial herbivores right until the Late Triassic, when changing conditions caused them to decline
- 1 Classification
- 11 Taxonomy
- 12 Phylogeny
- 2 See also
- 3 References
- Order Therapsida
- Suborder Anomodontia
- clade Anomocephaloidea
- Superfamily Venyukovioidea
- Family Otsheridae
- Family Venyukoviidae
- Family Otsheridae
- Clade Chainosauria
- Infraorder Dicynodontia
Cladogram modified from Liu et al 2009:
Below is a cladogram from Kammerer et al 2013 The data matrix of Kammerer et al 2013, a list of characteristics that was used in the analysis, was based on that of Kammerer et al 2011, which followed a comprehensive taxonomic revision of Dicynodon Because of this, many of the relationships found by Kammerer et al 2013 are the same as those found by Kammerer et al 2011 However, several taxa were added to the analysis, including Tiarajudens Eubrachiosaurus, Shaanbeikannemeyeria, Zambiasaurus and many "outgroup" taxa positioned outside Anomodontia, while other taxa were re-coded As in Kammerer et al 2011, the interrelationships of non-kannemeyeriiform dicynodontoids are weakly supported and thus vary between the analyses
- Evolution of mammals
- ^ Thulborn, T; Turner, S 2003 "The last dicynodont: an Australian Cretaceous relict" Proceedings of the Royal Society of London B 270: 985–993 doi:101098/rspb20022296 JSTOR 3558635 PMC 1691326 PMID 12803915
- ^ a b Liu, J; Rubidge, B; Li, J 2009 "A new specimen of Biseridens qilianicus indicates its phylogenetic position as the most basal anomodont" Proceedings of the Royal Society B 277 1679: 285–292 doi:101098/rspb20090883 PMC 2842672 PMID 19640887
- ^ Bakker 1975
- ^ BOTHA-BRINK, Jennifer; ANGIELCZYK, Kenneth D "Do extraordinarily high growth rates in Permo-Triassic dicynodonts Therapsida, Anomodontia explain their success before and after the end-Permian extinction" Zoological Journal of the Linnean Society 160 2: 341–365 doi:101111/j1096-3642200900601x
- ^ "Microbiota and food residues including possible evidence of pre-mammalian hair in Upper Permian coprolites from Russia" Lethaia doi:101111/let12156
- ^ Chinsamy-Turan, A 2011 Forerunners of Mammals: Radiation - Histology - Biology, p39 Indiana University Press, ISBN 0253356970 Retrieved May 2012
- ^ a b Kammerer, C F; Fröbisch, J R; Angielczyk, K D 2013 Farke, Andrew A, ed "On the Validity and Phylogenetic Position of Eubrachiosaurus browni, a Kannemeyeriiform Dicynodont Anomodontia from Triassic North America" PLoS ONE 8 5: e64203 doi:101371/journalpone0064203 PMC 3669350 PMID 23741307
- ^ Kammerer, CF; Angielczyk, KD; Fröbisch, J 2011 "A comprehensive taxonomic revision of Dicynodon Therapsida, Anomodontia and its implications for dicynodont phylogeny, biogeography, and biostratigraphy" Journal of Vertebrate Paleontology 31 Suppl 1: 1–158 doi:101080/027246342011627074
anomodont, anomodontia, anomodonts
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