Peripantostylops

Peripantostylops; Temporal range: Eocene (Ypresian-Lutetian; ~56–41.3 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Notoungulata
Family:	†Henricosborniidae
Genus:	†Peripantostylops; Ameghino, 1901
Type species
	†Peripantostylops minutus; Ameghino, 1901
Synonyms
	Selenoconus agilis Ameghino 1901;

Peripantostylops is an extinct genus of notoungulate belonging to the family Henricosborniidae that lived during the Eocene in what is now Argentina.^[1]

Description

This animal is mostly known from fossilized molars. Those were low-crowned (brachydont) and bunolophodont. The upper molars had a highly developed crochet unlike other genera of Henricosborniidae. The third molar either doesn't have a metastyle or it is weakly developed. For the lower molars, the hypoconulid is less separated from the hypoconid. The entoconid of the third molar was highly developed as an independent cuspid.^[2]

Bibliography

^ Ameghino, Florentino (1901). "Notices préliminaires sur des ongulés nouveaux des terrains crétacès de Patagonie". Boletin de la Academia Nacional de Ciencias de Córdoba. 16: 349–429. OCLC 123174974.
^ Simpson, George Gaylord (1948). "The beginning of the age of mammals in South America. Part 1, Introduction : Systematics : Marsupialia, Edentata, Condylarthra, Litopterna and Notioprogonia". Bulletin of the AMNH. 91. hdl:2246/1632.

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[1] Ameghino, Florentino (1901). "Notices préliminaires sur des ongulés nouveaux des terrains crétacès de Patagonie". Boletin de la Academia Nacional de Ciencias de Córdoba. 16: 349–429. OCLC 123174974.

[:0-2] Simpson, George Gaylord (1948). "The beginning of the age of mammals in South America. Part 1, Introduction : Systematics : Marsupialia, Edentata, Condylarthra, Litopterna and Notioprogonia". Bulletin of the AMNH. 91. hdl:2246/1632.

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