Peripantostylops

{{Short description|Extinct genus of mammals}}

{{Automatic taxobox

| fossil_range = Eocene (Ypresian-Lutetian
~{{fossil range|56|41.3}}

| image =

| taxon = Peripantostylops

| authority = Ameghino, 1901

| type_species = †Peripantostylops minutus

| type_species_authority = Ameghino, 1901

| synonyms =

  • Selenoconus agilis {{small|Ameghino 1901}}

}}

Peripantostylops is an extinct genus of notoungulate belonging to the family Henricosborniidae that lived during the Eocene in what is now Argentina.{{cite journal|url=http://worldcat.org/oclc/123174974|title=Notices préliminaires sur des ongulés nouveaux des terrains crétacès de Patagonie|last=Ameghino|first=Florentino|date=1901|journal=Boletin de la Academia Nacional de Ciencias de Córdoba|volume=16|pages=349–429|editor=|doi=|oclc=123174974|pmid=}}

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.{{cite journal|url=http://digitallibrary.amnh.org/handle/2246/1632|title=The beginning of the age of mammals in South America. Part 1, Introduction : Systematics : Marsupialia, Edentata, Condylarthra, Litopterna and Notioprogonia.|journal=Bulletin of the AMNH |volume=91|last=Simpson|first=George Gaylord|date=1948|hdl=2246/1632 }}

Bibliography