| Name | Age | Stage | Formation | Member | Comment |
|---|---|---|---|---|---|
| Ostrea tecticosta Gabb, 1860 |
Cretaceous | Campanian and Maastrichtian | Demopolis | - | no photo yet North Carolina |
| Ostrea planovata Schumard, 1862 |
Cretaceous | Maastrichtian | Austin limestone? | - | To be collected |
| Ostrea cortex Conrad, 1857 |
Cretaceous | Maastrichtian | Escondido | - | To be collected |
| Ostrea saltillensis Bose, 1913 |
Cretaceous | Campanian | San Miguel | - | To be collected |
| Ostrea bella Conrad, 1857 |
Cretaceous | Campanian | Exogyra ponderosa zone | - | To be collected |
| Ostrea plumosa Morton, 1833 |
Cretaceous | Coniacian through Maastrichtian | Annona, Austin Chalk, Blossom, Brownstown, Escondido, Gober, Nacatoch, Neylandville, Pecan Gap, San Miguel, Wolf City | - | To be collected |
| Ostrea centerensis Stephenson, 1929 |
Cretaceous | Coniacian | Austin Chalk and Burditt Marl | - | To be collected |
| Ostrea beloiti Logan, 1899 |
Cretaceous | Cenomanian, Turonian and Coniacian | Blossom, Boquillas, Chispa Summit and Ojinaga | - | To be collected |
| Ostrea pediformis Cragin, 1893 |
Cretaceous | Cenomanian | Eagle Ford group | - | To be collected |
| Ostrea alifera Cragin, 1893 |
Cretaceous | Cenomanian | Eagle Ford group | - | To be collected |
| Ostrea lyoni Schumard, 1861 |
Cretaceous | Cenomanian | Woodbine group | - | To be collected |
| Ostrea leveretti Stephenson, 1952 |
Cretaceous | Cenomanian | Euless and Lewisville | - | To be collected |
| Ostrea carica Cragin, 1893 |
Cretaceous | Cenomanian | Lewisville | - | To be collected |
| Ostrea perversa Cragin, 1893 |
Cretaceous | Albian | Glen Rose | - | To be collected |
| Ostrea riograndensis Stanton, 1947 |
Cretaceous | Albian | Glen Rose and Quitman | - | No photo yet |