FOSSILS SPECIMEN: BIVALVIA
Fossils are defined as any evidence of prehistoric life. There are two types of fossils: Body Fossils include remains of skeletal bones, shell, carapace, test and teeth. Trace Fossils are clues the organism existed such as foot prints, tracks, burrows and coprolites (fossil dung).
Kingdom: Animalia – Phylum: Mollusca – Class: Bivalvia “two valves or shells”
(clams and oysters)
Lower Cambrian to Holocene

Bivalve Carolinpectin eboreus
Pectinidae (Scallops)
Tertiary-Pliocene-Piacenzian Tamiami FM-Pinecrest Member Florida

Bivalve Pectin Neithia
Lower Cretaceous
Fort Worth, Tarrant County, Texas

Bivalve (Pelecypod)
Pectin
Cretaceous
Grayson Marl Formation Rayzor Ranch Denton Texas

Bivalve Matrix
Cretaceous
Wyoming, North America

Bivalve Lima
Lower Cretaceous
Fort Worth, Tarrant County, Texas

Bivalve
Cretacous
North America

Bivalve Pectin
Lower Cretaceous
Fort Worth, Tarrant County, Texas

Bivalve Inoceramus Shell Fragment
Cretaceous
West, Texas

Bivalve Peilinia crenulimargo
Lower Cretaceous
Kerrville, Texas

Bivalve Exogyra ponderosa
Cretaceous
Texas

Bivalve Texigryphaea
Lower Cretaceous
Texas

Bivalve Texigryphaea
Lower Cretaceous
The Waco Pit, Waco, Texas

Bivalve Gryphaea
Jurassic

Bivalve Gryphaea “Devil’s Toenail”
Lower Cretaceous
Fort Worth, Tarrant County, Texas

Bivalve Ceratostreon texanum
(formerly Exogyra texana)
Lower Cretaceous
Kerrville, Texas

Bivalve Rastellum (Arcotrea) Carinatum Lamarck
Cretaceous
Denton Clays McLennon County, Texas, United States

Bivalve
Rastellum (Lateral View)
Cretaceous
Texas, United States

Bivalve
Rastellum (Dorsal View)
Cretaceous
Texas, United States

Bivalve Ilymatogyra arietina (Ram’s Horn Oyster)
Cretaceous
Buda, Formation, Comstock, Texas

Bivalve (Oyster)
Ostrea falcata
Cretaceous
United States

Bivalve Fossil Oyster
Cenozoic
North America

Bivalve
Gyrostea
Cretaceous
Texas, United States

Bivalve
Gyrostea
Cretaceous
Texas, United States

Bivalve
Gyrostea
Cretaceous
Texas, United States

Bivalve Oysters
Lopha bellaplicata bellaplicata
Post Oak Creek south of Sherman Texas United States

Bivalve Oysters in Matrix
Lopha bellaplicata bellaplicata
Post Oak Creek south of Sherman Texas United States

Bivalve Oysters
Lopha bellaplicata bellaplicata
Post Oak Creek south of Sherman Texas United States

Bivalve Protocardia texana
Cretaceous
Texas

Bivalve Artica (internal cast)
Lower Cretaceous
Kerrville, Texas

Bivalve Anoma (internal cast)
Lower Cretaceous
Fort Worth, Tarrant County, Texas

Bivalve Nucula (internal cast)
Lower Cretaceous
Fort Worth, Tarrant County, Texas

Bivalve Cyprimeria texana internal cast
Lower Cretaceous
Fort Worth, Tarrant County, Texas

Bivalve Artica (internal cast)
Lower Cretaceous
Kerrville County, Texas

Bivalve Protocardia (internal cast)
Lower Cretaceous
Kerrville, Texas

Bivalve Leptosolen (internal cast)
Lower Cretaceous
Fort Worth, Tarrant County, Texas

Bivalve Paleyoldia
Pennsylvanian
Jacksboro, Jack County, Texas

Bivalve Hippuritoida (Rudist Clams)
Core Natural Cast
Lower Cretaceous
Kerrville, Texas

Bivalve Trigonia
Lower Cretaceous
Kerrville, Texas

Bivalve Exogyra tigris
Cretaceous
Texas

Bivalve Paleyoldia
Pennsylvanian
(Upper Carboniferous)
Finis Shale, Graham Formation, Jacksboro, Jack County, Texas

Bivalve Palaeoneilo oweni
Pennsylvanian
(Upper Carboniferous)
Finis Shale, Graham Formation, Jacksboro, Jack County, Texas

Bivalve Crurithyris planoconvexa
Pennsylvanian
(Upper Carboniferous)
Finis Shale, Graham Formation, Jacksboro, Jack County, Texas

Bivalve Astartella varica
Pennsylvanian (Upper Carboniferous)
Finis Shale, Graham Formation, Jacksboro, Jack County, Texas

Bivalve Myalina
Pennsylvanian (Upper Carboniferous)
Finis Shale, Graham Formation, Jacksboro, Jack County, Texas

Bivalve Astartella varica
Pennsylvanian (Upper Carboniferous)
west Mineral Wells roadcut Palo Pinto County, Texas

Bivalve Barbatia uxorispalmeri
Eocene
Stone City Formation, Bryan, Texas

Bivalve Venericardia rotunda
Eocene
Stone City Formation, Bryan, Texas

Bivalve Anomia ephippioides
Eocene
Stone City Formation, Bryan, Texas

Bivalve Caryocorbula deusseni
Eocene
Stone City Formation, Bryan, Texas

Bivalve Pteropsella lapidosa
Eocene
Stone City Formation, Bryan, Texas

Bivalve Notocorbula texana
Eocene
Stone City Formation, Bryan, Texas

Bivalve Lopha (Ostreoidea)
Cretaceous
Texas