The beginning of the age of mammals in South America.
Series: Bulletin of the American Museum of Natural History, v. 91, article 1; v. 137; Bulletin of the American Museum of Natural History ;; v. 91, article 1, etc.
Publisher: [American Museum of Natural History]
Published: 1948
Place of publication: New York
Language: eng
Subjects: Mammals, Fossil -- Patagonia (Argentina and Chile); Paleontology -- Patagonia (Argentina and Chile); Paleontology -- Tertiary.
Table of contents: title: pt. 1. Introduction. Systematics: Marsupialia, eden tata, condylarthra, litopterna and notioprogonia.