First Quaternary Fossil Record of Caecilians from a Mexican Archaeological Site

Quaternary Research - Tập 52 - Trang 138-140 - 1999
Thomas A. Wake1, Marvalee H. Wake2, Richard G. Lesure3
1Institute of Archaeology, University of California, Los Angeles, California, 90095-1510
2Department of Integrative Biology and Museum of Vertebrate Zoology, University of California, Berkeley, California, 94720-3140
3Department of Anthropology, University of California, Los Angeles, California, 90095-1361

Tóm tắt

A single vertebra from an Early Formative period archaeological site in coastal Chiapas, México, is identified as belonging to the amphibianDermophis mexicanus(Duméril and Bibron) 1841 (Amphibia: Gymnophiona: Caeciliidae). The vertebra was recovered from deposits dated to approximately 1200–1350 B.C. The specimen represents the first Quaternary fossil record for gymnophiones. Its presence suggests the possible role of the species as a bioturbator. Its recovery is further evidence of the utility of fine-grained archaeological recovery techniques.

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