Print ISSN: 0031-0247
Online ISSN: 2274-0333
A pangolin from the French Quercy phosphorites
Abstract book of the 18th Conference of the EAVP
FOSSIL SELACHIANS FROM THE BANDAH FORMATION
A new stem hystricognathous rodent from the Eocene of Tunisia
Type material of Mesacanthus pusillus
Perutherium altiplanense, un Notongulé du Cretacé Supérieur du PérouDental morphology; Late Cretaceous; Notoungulate; Paleobiogeography; Peru
Cite this article: Marshall L. G., de Muizon C., Sigé B., 1983. Perutherium altiplanense, un Notongulé du Cretacé Supérieur du Pérou. Palaeovertebrata 13 (4): 145-155.
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)