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Stratigraphic Occurrence and Correlation of Early Tertiary Vertebrate Faunas, Trans-Pecos Texas
(Texas Memorial Museum, The University of Texas at Austin, 1977)
Strategraphic positions for the Candelaria local fauna (late Uintan), the Porvenir local fauna (early Chadronian), Little Egypt, and Airstrip local faunas (Chadronian) within the Vieja Group are given. The Porvenir local ...
Early Tertiary Vertebrate Faunas Vieja Group Trans-Pecos Texas: Rodentia
(Texas Memorial Museum, The University of Texas at Austin, 1974-04)
The fossil rodents of the late Eocene to early Oligocene Vieja Group are described. They include the paramyids Leptotomus leptodus, L. gigans n. sp., Mytonomys gaitania, Microparamys perjossus n. sp., Ischyrotomus cf, ...