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Strepsidura ficus (Gabb) of Harris (1895), Eocene of Texas: A Volutid Gastropod Species Distinct from Whitneya ficus Gabb, 1864, Eocene of California

Charles R. Givens and Christopher L. Garvie
Journal of Paleontology
Vol. 68, No. 2 (Mar., 1994), pp. 274-278
Published by: Paleontological Society
Stable URL: http://www.jstor.org/stable/1306068
Page Count: 5
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Strepsidura ficus (Gabb) of Harris (1895), Eocene of Texas: A Volutid Gastropod Species Distinct from Whitneya ficus Gabb, 1864, Eocene of California
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Abstract

Morphometric analysis demonstrates that Strepsidura ficus (Gabb) of Harris (1895), from the lower middle Eocene Reklaw and Queen City Formations of Texas, is specifically distinct from Whitneya ficus Gabb (1864) of the Californian Eocene. Accordingly, the new name Strepsidura harrisi is proposed for the Texas species. Strepsidura s.s. is represented in North America by S. ficus (Gabb), S. harrisi n. sp., and an unnamed species closely related to S. harrisi in the upper Paleocene Sequin Formation of Texas. Strepsidura s.s. apparently originated in the Old World Tethyan Realm during the Paleocene and subsequently spread to North America.

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