Pholadomya shattucki Böse, 1910

Remarks

• Collector:    Patric Milam

• Formation:  Upper Washita Group, Weno Limestone

• Location:     Tarrant County, TX.

General Info

Synonyms (older names and misidentifications in the literature)

• Does not = 1885 Pholadomya roemeri Whitfield

• 1903 Pholadomya roemeri Shattuck

• 1910 Pholadomya shattucki Böse

• 1920 Pholadomya shattucki Böse; Winton and Adkins

• 1960 Pholadomya shattucki Böse; Perkins

• 1982 Pholadomya shattucki Böse; Offeman et al.

• 1989 Pholadomya shattucki Böse; Finsley

Stratigraphic Occurrence

• Uppermost Washita Group, Buda Formation of central Texas

• Uppermost Washita Group, Grayson Formation of north Texas

• Upper Washita Group, Mainstreet Formation of north Texas

• Upper Washita Group, Upper Marl Member of the Weno Formation of north Texas

• Upper Washita Group, Lower Limestone Member of the Weno Formation of north TX

• Lower Washita Group, Fort Worth Formation of north Texas

• Basal Washita Group, Duck Creek Formation of north Texas

• Lower Washita Group, Smeltertown Formation (??) of El Paso, Texas

• Lower Washita Group, Aurora Limestone (Fort Worth equivalent), Coahuila, Mexico

• Fredericksburg Group, Lower Aurora Limestone (Walnut/Goodland equivalent), Coahuila, Mexico

• We recently found a specimen from the Fredericksburg Group, Bee Caves Limestone (= Walnut Clay)

Age

• Pholadomya shattucki Böse ranges from about middle Albian to lower Cenomanian time (~105 to 97 mya).

Geographic Occurrence (not an all-inclusive list)

• Coahuila, Mexico

• El Paso County, Texas

• Grayson County, Texas

• Tarrant County, Texas

• Travis County, Texas

Remarks

         For identification and descriptions, see:

• Perkins, B. F. 1960. Biostratigraphic Studies in the Comanche (Cretaceous) Series of Northern Mexico and Texas. Geological Society of America Memoir 83.

• Finsley, C. 1989. A Field Guide to Fossils of Texas. Austin: Texas Monthly Press.