Mammalian Dispersal at the Paleocene/Eocene Boundary-Reference-Cited by-同舟云学术

Mammalian Dispersal at the Paleocene/Eocene Boundary

Published:2002-03-15 Issue:5562 Volume:295 Page:2062-2065
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Bowen Gabriel J.¹,Clyde William C.²,Koch Paul L.¹,Ting Suyin³⁴,Alroy John⁵,Tsubamoto Takehisa⁶,Wang Yuanqing⁴,Wang Yuan⁴

Affiliation:

1. Department of Earth Sciences, University of California, Santa Cruz, CA 95064, USA.

2. Department of Earth Sciences, University of New Hampshire, Durham, NH 03824–3589, USA.

3. Museum of Natural Science, Louisiana State University, Baton Rouge, LA 70803, USA.

4. Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Post Office Box 643, Beijing 100044, People's Republic of China.

5. National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, CA 93101–3351, USA.

6. Primate Research Institute, Kyoto University, Inuyama 484–8506, Japan.

Abstract

A profound faunal reorganization occurred near the Paleocene/Eocene boundary, when several groups of mammals abruptly appeared on the Holarctic continents. To test the hypothesis that this event featured the dispersal of groups from Asia to North America and Europe, we used isotope stratigraphy, magnetostratigraphy, and quantitative biochronology to constrain the relative age of important Asian faunas. The extinct family Hyaenodontidae appeared in Asia before it did so in North America, and the modern orders Primates, Artiodactyla, and Perissodactyla first appeared in Asia at or before the Paleocene/Eocene boundary. These results are consistent with Asia being a center for early mammalian origination.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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