Exogyra arietina
- Phylum: Mollusca
- Class: Bivalvia
- Order: Ostreida
- Family: Gryphaeidae
- Genus: Exogyra
- Species: Exogyra arietina
- Common Name: Oyster
Geological Range
Albian to Campanian
Paleogeographic Distribution
Texas to Oklahoma
Stratigraphic Occurrences
- Campanian
- Pierre Shale (TX)
- Cenomanian
- Del Rio Formation (TX)
- Grayson Marl (TX)
- Albian
- Del Rio Formation (TX)
- Denison Formation (TX)
- Duck Creek Formation (TX)
- Grayson Marl (TX)
- Mesilla Valley Formation (NM)
- Walnut Formation (TX)
- Unknown Stage
- Buda Limestone (TX)
- Del Rio Formation (TX)
- Georgetown Formation (OK)
- Georgetown Formation (TX)
