Class: Bivalvia - Bivalves - Pelecypods
Order: Ostreoida
Family: Gryphaeidae:
Genus: Texigryphaea, Gryphea, and Exogyra oysters
Cretaceous Period: | ||
Ilymatogyra arietina![]() (Exogyra arietina) Strata: Grayson Period: Cretaceous (96-97 mya) Loc: Tarrant Co., TX. Dec. 8, 2007. |
Ilymatogyra arietina![]() (Exogyra arietina) Strata: Mainstreet Period: Cretaceous (97 mya) Loc: Tarrant Co., TX. 2006. |
Gryphea washitaensis![]() Strata: Weno Period: Cretaceous (98-99 mya) Loc: Tarrant Co., TX. 2006. |
Texigryphaea navia![]() ![]() Strata: Kiamichi Period: Cretaceous (102 mya) Loc: Tarrant Co., TX. |
Texigryphaea navia![]() Strata: Kiamichi Period: Cretaceous (102 mya) Loc: Tarrant Co., TX. 2006. |
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Texigryphaea roemeri![]() ![]() Strata: Grayson Period: Cretaceous (96-97 mya) Loc: Denton Co., TX. 2014. |
Texigryphaea roemeri![]() Strata: Grayson Period: Cretaceous (96-97 mya) Loc: Denton Co., TX. 2014. |
Texigryphaea roemeri![]() Strata: Grayson Period: Cretaceous (96-97 mya) Loc: Denton Co., TX. 2006. |
Exogyra plexa![]() Strata: Goodland? Period: Cretaceous (103-105 mya) Loc: Tarrant Co., TX. 2006. |
Amphidonte walkeri![]() (Exogyra americana) Strata: Fort Worth Period: Cretaceous (100 mya) Loc: Tarrant Co., TX. July 7, 2007. |
Class: Bivalvia - Bivalves - Pelecypods
Order: Ostreoida
Family: Ostreidae
Genus: Rastellum
Rastellum carinatum "denture clam"![]() Strata: Denton/Weno? Period: Cretaceous (98-99 mya) Loc: Tarrant Co., TX. |
Rastellum carinatum "denture
clam" ![]() Strata: upper Pawpaw Period: Cretaceous (98-99 mya) Loc: Tarrant Co., TX. |
Rastellum carinatum slab![]() Strata: Denton? Period: Cretaceous (99 mya) Loc: Texoma. Jan. 12, 2008. Mark S. |
Class: Bivalvia - Bivalves - Pelecypods
Order: Ostreoida
Family: Ostreidae
Genus: Ceratostreon
Class: Bivalvia - Bivalves - Pelecypods
Order: Ostreoida
Family: Ostreidae
Genus: Ostrea
Class: Bivalvia - Bivalves - Pelecypods
Order: Ostreoida
Family: Plicatulidae
Plicatula sp. ("cat's paw")![]() Strata: Weno Period: Cretaceous (98-99 mya) Loc: Tarrant Co., TX. June 17, 2007. |
Class: Bivalvia - Bivalves - Pelecypods
Order: Ostreoida
Sub-family: Lophinae
Lopha sp.![]() ![]() Strata: Mainstreet - Grayson Period: Cretaceous (96-97 mya) Loc: Tarrant Co., TX. Aug. 22, 2009. |
Lopha bellaplicata![]() ![]() Strata: Eagle Ford Group Period: Cretaceous (96-97 mya) Loc: Collin Co., TX. 29 Sep 2019. |
Lopha sp.![]() Strata: Goodland Period: Cretaceous (103-105 mya) Loc: Denton Co., TX. Aug. 16, 2008. |
Class: Bivalvia - Bivalves - Pelecypods
Order: Ostreoida
Family: Bakevelliidae
Gervillia ensiformis![]() Strata: Weno Period: Cretaceous (98-99 mya) Location: Tarrant Co., TX. May 19, 2013. |