Eucynodontia ("true dog teeth") is a clade of cynodont therapsids including mammals and most non-mammalian cynodonts. The oldest eucynodonts are known from the Early Triassic and possibly Late Permian. Eucynodontia includes two major subgroups, Cynognathia and Probainognathia.[1]
The clade was named in 1982 by Thomas Kemp, who defined it as all cynodonts more derived than Thrinaxodon.[2][3]
In 2001, Hopson and Kitching redefined the clade Eucynodontia as the least inclusive group containing Mammalia and Exaeretodon.[4]
^Rubidge, B.S.; Sidor, C.A. (2001). "Evolutionary patterns among Permo-Triassic therapsids" (PDF). Annual Review of Ecology, Evolution, and Systematics. 32: 449–480. doi:10.1146/annurev.ecolsys.32.081501.114113. Archived from the original (PDF) on 2012-03-21.
^T.S. Kemp. 1982. Mammal-like Reptiles and the Origin of Mammals 363 pp
^Martínez, R. N.; Fernandez, E.; Alcober, O. A. (2013). "A new non-mammaliaform eucynodont from the Carnian-Norian Ischigualasto Formation, Northwestern Argentina". Revista Brasileira de Paleontologia. 16: 61–76. doi:10.4072/rbp.2013.1.05.
^James A. Hopson and James W. Kitching, 2001, "A Probainognathian Cynodont from South Africa and the Phylogeny of Nonmammalian Cynodonts" pp 5-35 in: PARISH A. JENKINS, JR., MICHAEL D. SHAPIRO, AND TOMASZ OWERKOWICZ, EDITORS, STUDIES IN ORGANISMIC AND EVOLUTIONARY BIOLOGY IN HONOR OF A. W. CROMPTON Bullettin of the Museum of Comparative Zoology. Harvard University 156(1)
Eucynodontia ("true dog teeth") is a clade of cynodont therapsids including mammals and most non-mammalian cynodonts. The oldest eucynodonts are known...
Probainognathia is one of the two major subgroups of the clade Eucynodontia, the other being Cynognathia. The earliest forms were carnivorous and insectivorous...
that includes most cynodonts, such as galesaurids, thrinaxodontids, and Eucynodontia (including mammals). It was erected as a stem-based taxon by Hopson and...
Post-Early Triassic cynodonts were dominated by members of the advanced clade Eucynodontia, which has two main subdivisions, the predominantly herbivorous Cynognathia...
Europe, North America and South America. Suborder Cynodontia Infraorder Eucynodontia (unranked) Cynognathia Family Cynognathidae Cynognathus (unranked) Gomphodontia...
Schultz, C.L. (2010). "Trucidocynodon riograndensis gen. nov. et sp. nov. (Eucynodontia), a new cynodont from the Brazilian Upper Triassic (Santa Maria Formation)"...
Schultz, C.L. (2010). "Trucidocynodon riograndensis gen. nov. et sp. nov. (Eucynodontia), a new cynodont from the Brazilian Upper Triassic (Santa Maria Formation)"...
Cynognathidae. Later a clade Cynognathia was named after the genus, within the Eucynodontia. Cynognathus crateronotus in a cladogram after Stefanello et al. (2023):...
progressively shrunk to the region of the columella. 230-170 Ma From Eucynodontia came the first mammals. Most early mammals were small shrew-like animals...
Schultz, C.L. (2010). "Trucidocynodon riograndensis gen. nov. et sp. nov. (Eucynodontia), a new cynodont from the Brazilian Upper Triassic (Santa Maria Formation)"...
Schultz CL (2010). "Trucidocynodon riograndensis gen. nov. et sp. nov. (Eucynodontia), a new cynodont from the Brazilian Upper Triassic (Santa Maria Formation)"...
information on Riograndia guaibensis Bonaparte, Ferigolo & Ribeiro, 2001 (Eucynodontia, Tritheledontidae) from the Late Triassic of southern Brazil: anatomical...
PMID 31344085. Liu J, Olsen P (2010). "The Phylogenetic Relationships of Eucynodontia (Amniota: Synapsida)". Journal of Mammalian Evolution. 17 (3): 151–176...
3.07. Liu, J.; Olsen, P. (2010). "The Phylogenetic Relationships of Eucynodontia (Amniota: Synapsida)". Journal of Mammalian Evolution. 17 (3): 151–176...
cynodonts. Along with the family Thrinaxodontidae and the extensive clade Eucynodontia (which includes mammals), it makes up the unranked taxon called Epicynodontia...
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