Liopistha protexta (Conrad, 1853)

Remarks

• Collector:    Rick Fulton

• Formation:  Monmouth Group, Navesink Formation

• Location:     Monmouth County, NJ

General Info

Synonyms (older names and misidentifications in the literature)

• 1853 Cardium protextum Conrad
• 1860 Fragilia protexta Conrad
• 1861 Papyridea elegantula Gabb (in part)
• 1864 Papyridea (Liopistha) protexta (Conrad); Meek
• 1875 Liopistha protexta (Conrad); Kerr
• 1876 Liopistha protexta (Conrad); Meek
• 1886 Liopistha protexta (Conrad); Whitfield
• 1886 ?Liopistha inflata Whitfield
• 1907 Liopistha protexta (Conrad); Weller
• 1916 Liopistha protexta (Conrad); Gardner
• 1923 Liopistha protexta (Conrad); Stephenson
• 1926 Liopistha protexta (Conrad); Stephenson
• 1926 ?Liopistha protexta (Conrad); Wade
• 1941 Liopistha protexta (Conrad); Stephenson
• 1954 Liopistha protexta (Conrad); Groot, Organist, and Richards
• 1958 Liopistha protexta (Conrad); Richards
• 1982 Liopistha protexta (Conrad); Offeman et al.

Stratigraphic Occurrence

• Monmouth Group, Tinton Formation of New Jersey
• Monmouth Group, Red Bank Formation of New Jersey
• Monmouth Group, Navesink Formation of New Jersey
• Monmouth Group, Mount Laurel Formation of New Jersey
• Matawan Group, Wenonah Formation of New Jersey
• Matawan Group, Merchantville Formation of New Jersey
• Coon Creek Tongue of the Ripley Formation of Mississippi and Tennessee
• Prairie Bluff Formation of Alabama and Mississippi
• Owl Creek Formation of Mississippi
• Ripley Formtion of Alabama and Georgia
• Providence Sand of Georgia
• Peedee Formation of South Carolina
• Monmouth Group, Severn Formation of Maryland
• Navarro Group, Nacatoch Formation of northeast Texas and southwestern Arkansas
• Navarro Group, Saratoga Chalk of southwestern Arkansas
• Taylor Group, Anacacho Limestone of south-central Texas
• Taylor Group, Wolfe City Formation of northeast Texas
• Taylor Group, Pecan Gap Formation of north Texas

Age

• Liopistha protexta (Conrad) ranges from the early Campanian to the early Maastrichtian Stage (~81–70 mya).

Geographic Occurrence (not an all-inclusive list)

• Alabama (county ?)
• Burlington County, NJ
• Caldwell County, TX
• Franklin County, TX
• Georgia (county ?)
• Hempstead County, AR
• Kaufman County, TX
• Lamar County, TX
• Maryland (county ?)
• McNairy County, TN
• Medina County, TX
• Navarro County, TX
• Tippah County, MS

Remarks

       The best figures of this beautiful clam can be found in Stephenson:

• Stephenson, L. W.  1941.  The Larger Invertebrate Fossils of the Navarro Group of Texas (Exclusive of Corals and Crustaceans, and Exclusive of the Fauna of the Escondido Formation).  University of Texas Bulletin 4101.