Issue


1983-11
Vol. 13, Fasc. 4
<< prev. next >>

Print ISSN: 0031-0247
Online ISSN:
2274-0333
Frequency: biannual

Article Management

You must log in to submit or manage articles.

You do not have an account yet ? Sign up.

PalaeoVertebrata Vol. 13, Fasc. 4
<< prev. article next article >>

Article

Perutherium altiplanense, un Notongulé du Cretacé Supérieur du Pérou
Larry G. Marshall, Christian de Muizon and Bernard Sigé
Published online: 11/30/83

Keywords: Dental morphology; Late Cretaceous; Notoungulate; Paleobiogeography; Peru

Cite this article: Larry G. Marshall, Christian de Muizon and Bernard Sigé, 1983. Perutherium altiplanense, un Notongulé du Cretacé Supérieur du Pérou. PalaeoVertebrata 13 (4): 145-155.

Export citation

Abstract

Perutherium altiplanerise THALER, 1967 from the Late Cretaceous of Peru has long been recognized as South America's oldest known placental mammal. Since its description Perutherium has been generally regarded as having condylarth affinity Based on our identification  of a unique notoungulate synapomorphy we recognize Perutherium as the oldest and the most generalized known member of that order. This new determination and the large taxonomic diversity (five families) of notoungulates in rocks of Paleocene age in Argentina and Brazil, favor a South American origin for this group. The occurrence of notoungulates in rocks of Late Paleocene age in Asia and North America is explained by dispersal of a notoungulate stock from South America to North America and from there to Asia. 



Published in Vol. 13, Fasc. 4 (1983)

PDF