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Occurrence of the spatangid echinoid Maretia arguta (Clark) in the Middle Eocene of Texas

Published online by Cambridge University Press:  20 May 2016

Louis G. Zachos
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Extract

Echinoid fragments were reported by Zachos (1990) from a Weches Formation (Clairborne) outcrop on Hooker Creek in Burleson County, Texas. Enough fragments have been found at the latter locality to piece together a composite identifiable as a species of the spatangid genus Maretia, most likely M. arguta. This species has not previously been reported outside of Clarke County, Mississippi. A search of the stratigraphic collections of the Texas Memorial Museum in Austin, Texas, has uncovered several previously unidentified specimens of M. arguta from two Weches localities, at Kickapoo Shoals on the Trinity River in Houston County and at Nacogdoches in Nacogdoches County. In addition, spatangoid fragments, some of which are attributable to M. arguta, are common in collections from the Weches and Cook Mountain Formations.

Type
Paleontological Notes
Information
Journal of Paleontology , Volume 67 , Issue 1 , January 1993 , pp. 148 - 150
Copyright
Copyright © The Paleontological Society 

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