Cyprimeria texana (Roemer, 1852)

General Info

Synonyms (older names and misidentifications in the literature)

• (?) 1849 Lucina sp. ind. Römer
• 1852 Arcopagia texana Römer
• 1893 Cyprimeria texana (Roemer); Cragin
• 1920 Cyprimeria texana (Roemer); Adkins and Winton
• 1925 Cyprimeria texana (Roemer); Winton
• 1928 Cyprimeria texana (Roemer); Adkins
• 1944 Cyprimeria texana (Roemer); Shimer and Shrock
• 1960 Cyprimeria texana (Roemer); Perkins
• 1967 Cyprimeria texana (Roemer); Hendricks
• 1982 Cyprimeria texana (Roemer); Offeman et al.
• 1989 Cyprimeria texana (Roemer); Finsley

Stratigraphic Occurrence

• Fredericksburg Group, Kiamichi Formation of North Texas
• Fredericksburg Group, Goodland Formation of North Texas
• Fredericksburg Group, Comanche Peak Formation of North Texas
• Fredericksburg Group, Lower Aurora Formation of Northern Mexico

Age

• Cyprimeria texana
• (Roemer) is a Fredericksburg clam that ranges from about the Oxytropidoceras (Mirapelia) salasi (Young) zone to the Adkinsites bravoensis (Böse) zone, middle to late Albian (~105–103 mya).

Geographic Occurrence (not an all-inclusive list)

• Bell County, TX
• Callahan County, TX
• Coahuila, Mexico
• Cooke County, TX
• Denton County, TX
• Gillespie County, TX
• Grayson County, TX
• Hudspeth County, TX
• Johnson County, TX
• McLennan County, TX
• Lampasas County, TX
• Stonewall County, TX
• Tarrant County, TX
• Travis County, TX
• Williamson County, TX

Remarks

         For identification and descriptions, see:

• Adkins, W. S. 1928. Handbook of Texas Cretaceous Fossils. Bureau of Economic Geology, University of Texas Bulletin 2838.
• Perkins, B. F. 1960. Biostratigraphic Studies in the Comanche (Cretaceous) Series of Northern Mexico and Texas. Geological Society of America Memoir 83