Category:Fossils from the Del Rio Clay

Media in category "Fossils from the Del Rio Clay"

This category contains only the following file.

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  On a new Exogyra from the Del Rio clay and some observations on the evolution of Exogyra in the Texas Cretaceous (IA onnewexogyrafrom00bsrich).pdf 900 × 1,339, 48 pages; 2 MB