The beginning of the age of mammals in South America. Part 2, Systematics : Notoungulata, concluded (Typotheria, Hegetotheria, Toxodonta, Notoungulata incertae sedis), Astrapotheria, Trigonostylopoidea, Pyrotheria, Xenungulata, Mammalia incertae sedis. Bulletin of the AMNH ; v. 137

Supplemental Materials

Date

1967

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Publisher

New York : [American Museum of Natural History]

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Description

259 p., 46 p. of plates : ill. ; 27 cm.
Includes bibliographical references (p. 251-254) and index.

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