Oldfieldthomasiidae

Oldfieldthomasiidae; Temporal range: Late Paleocene-Late Eocene; ~58.7–33.9 Ma PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Notoungulata
Suborder:	†Typotheria
Family:	†Oldfieldthomasiidae; Simpson, 1945
Genera
	†Allalmeia; †Brachystephanus; †Camargomendesia; †Colbertia; †Dolichostylodon; †Itaboraitherium; †Kibenikhoria; †Maxschlosseria; †Oldfieldthomasia; †Paginula; †Suniodon; †Tsamnichoria; †Ultrapithecus; †Xenostephanus
Synonyms
	Acoelodidae Ameghino 1901;

Oldfieldthomasiidae is an extinct family of notoungulate mammals known from the Late Paleocene to Late Eocene of South America.[1] The family was classified by George Gaylord Simpson in 1945 and a synonym is Acoelodidae, defined by Florentino Ameghino in 1901.[2]

Etymology

The family is named after British zoologist Oldfield Thomas.

Fossils of the family Oldfieldthomasiidae have been found in southern South America, in Argentina, Bolivia, Brazil and Chile.[2]

McKenna, Malcolm C.; Bell, Susan K. (1997). Classification of Mammals Above the Species Level. Columbia University Press, New York. pp. 1–631. ISBN 0-231-11013-8.
Oldfieldthomasiidae at Fossilworks.org

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