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First Record of Giant Anteater (Xenarthra, Myrmecophagidae) in North America

Christopher A. Shaw and H. Gregory McDonald
Science
New Series, Vol. 236, No. 4798 (Apr. 10, 1987), pp. 186-188
Stable URL: http://www.jstor.org/stable/1698387
Page Count: 3
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First Record of Giant Anteater (Xenarthra, Myrmecophagidae) in North America
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Abstract

A right metacarpal III represents the first North American record of the giant anteater (Myrmecophaga tridactyla). Recovered in northwestern Sonora, Mexico, with a rich vertebrate fauna of early Pleistocene (Irvingtonian) age, it belongs to a cohort of large mammals that dispersed from South America to North America along a savanna corridor. Presumably habitat and climatic changes have subsequently driven this mammalian family more than 3000 kilometers back into Central America from its former expansion into temperate North America.

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