Isotemnidae

Isotemnidae; Temporal range: Late Paleocene-Middle Miocene; (Itaboraian-Laventan); ~59.0–11.8 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Thomashuxleya
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Notoungulata
Suborder:	†Toxodontia
Family:	†Isotemnidae; Ameghino 1897
Genera
	†Anisotemnus; †Coelostylodon; †Distylophorus; †Hedralophus; †Isotemnus; †Lophocoelus; †Pampatemnus; †Periphragnis; †Pleurocoelodon; †Pleurostylodon; †Rhyphodon; †Thomashuxleya

Isotemnidae is an extinct family of notoungulate mammals known from the Paleocene (Las Flores Formation, Itaboraian) to Middle Miocene (Honda Group, Laventan) of South America.^[1]

References

^ McKenna, Malcolm C., and Bell, Susan K. 1997. Classification of Mammals Above the Species Level. Columbia University Press, New York, 631 pp. ISBN 0-231-11013-8

Goin, F. J.; Candela, A.M.; Abello, M.A.; Oliveira, E.V. (2009), "Earliest South American paucituberculatans and their significance in the understanding of 'pseudodiprotodont' marsupial radiations", Zoological Journal of the Linnean Society, 155 (4): 867–884, doi:10.1111/j.1096-3642.2008.00471.x, retrieved 2019-02-15
M. McKenna. 1956. Survival of primitive Notoungulates and Condylarths into the Miocene of Colombia. American Journal of Science 254:736-743

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Isotemnidae Temporal range: Late Paleocene-Middle Miocene (Itaboraian-Laventan) ~59.0–11.8 Ma PreꞒ Ꞓ O S D C P T J K Pg N

Thomashuxleya
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Notoungulata
Suborder:	†Toxodontia
Family:	†Isotemnidae Ameghino 1897
Genera
†Anisotemnus †Coelostylodon †Distylophorus †Hedralophus †Isotemnus †Lophocoelus †Pampatemnus †Periphragnis †Pleurocoelodon †Pleurostylodon †Rhyphodon †Thomashuxleya