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First occurrence of a phyllodont tooth plate (Osteichthyes, Platysomidae) from the Permian San Andres Formation, subsurface, Texas Panhandle1

Published online by Cambridge University Press:  14 July 2015

Michael A. Fracasso  and
Susan D. Hovorka
Michael A. Fracasso
Affiliation:
Bureau of Economic Geology, The University of Texas at Austin, University Station Box X, Austin 78713-7508
Susan D. Hovorka
Affiliation:
Bureau of Economic Geology, The University of Texas at Austin, University Station Box X, Austin 78713-7508
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Abstract

A single phyllodont tooth plate was identified in core from the Permian San Andres Formation of the Palo Duro Basin, Texas Panhandle. This is the first vertebrate fossil recorded from the San Andres Formation, and extends the Permian range of phyllodont dentitions into the lower Guadalupian Stage. The life environment is inferred to have been normal marine to marginally hypersaline, based on the occurrence of the specimen near the top of a carbonate unit in a carbonate-evaporite cycle.

Type
Research Article
Information
Journal of Paleontology , Volume 61 , Issue 2 , March 1987 , pp. 375 - 379
Copyright
Copyright © The Paleontological Society 

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References

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