subgenus). Exogyra (subgenus Exogyra) (Say, 1820) Exogyra africana Say, 1820 Exogyra aquillana Stephenson, 1953 Exogyra arietina Roemer, 1849 Exogyra callophyla...

name "devil's toenail" is also used for some fossil species of the genus Exogyra, which is in the same family (Gryphaeidae) as Gryphaea. Two genera have...

Aetostreon is an extinct genus or subgenus within the genus Exogyra of fossil marine oysters in the family Gryphaeidae. †Aetostreon latissimum (Lamarck...

and snails. During the Cretaceous, Arkansas was home to Belemnitella, Exogyra, Ostrea, Turritella, and other marine invertebrates in the Arkadelphia...

more. A wide variety of different animals lived in this sea. The oysters Exogyra and Gryphaea were preserved in great abundance during the Cretaceous period...

fossils include: Belemnites in the genus Belemnitella, Oysters such as Exogyra and Pycnodonte, and rare mosasaur, turtle, and plesiosaur remains. Earth...

fossils dating back to the Cretaceous period, notably marine invertebrates Exogyra texana, Gryphaea marcoui, and Carseyella walnutensis. Earth sciences portal...

†Exiteloceras †Exogyra †Exogyra acroumbonata – or unidentified related form †Exogyra clarki †Exogyra levis †Exogyra trigeri †Exogyra whitneyi †Fagesia...

beds in the Godalming area, including the bivalves Ostrea macroptera and Exogyra sinuata, and the brachiopods Rhynchonella parvirostris and Waldheimia tamarindus...

†Epitonium †Etea – tentative report †Exogyra †Exogyra boveyensis †Exogyra lamellosa †Exogyra mesabiensis †Exogyra suborbiculata †Gervillia †Gervillia propleura...

Clay includes: Mollusca: Cardium striatulum Ostrea deltoidea Gryphaea (Exogyra) virgula Trigonellites Belemnotheutis Etchesia Arthropoda: Phlyctosoma...

†Eutrephoceras †Eutrephoceras dekayi †Exogyra †Exogyra cancellata †Exogyra costata †Exogyra costata spinosa †Exogyra ponderosa erraticostata Contents A B...

†Enchodus †Euspira †Eutrephoceras †Exiteloceras †Exogyra †Exogyra cancellata †Exogyra costata †Exogyra ponderosa Gastrochaena †Gegania Ginglymostoma †Globidens...

planum Eutrephoceras dekayi Eutrephoceras alcesense Baculites sp. Exogyra poderosa Exogyra erraticostata Earth sciences portal Paleontology portal Dinosaurs...

fossils include Pyncnodonte mutabilis, Pyncnodonte convexa, Exogyra cancellata, Exogyra costata, Ostrea mesenterica, Agerostrea, Belemnitella americana...

A heteromorph ammonite with a nearly straight shell. Cardium A cockle. Exogyra A reef-forming true oyster associated with solid substrates and warm temperatures...

gracilistylis †Eulima monmouthensis †Euspira †Eutrephoceras †Exogyra †Exogyra costata †Exogyra ponderosa †Exogyra upatoiensis Fusinus †Gegania Gemmula †Gervillia †Globidens...

Hemihoplites mexicanus cf. Phylloceras serum Distoloceras sp. Bivalves Exogyra reedi Plicatula pulchra Gryphaea sp. Gastropods Vermetus cornejoi Pleurotomaria...

rectilabrum †Eutrephoceras †Eutrephoceras dekayi †Exogyra †Exogyra costata †Exogyra ponderosa †Exogyra upatoiensis Contents A B C D E F G H I J K L M N...

†Escharoides erymnos – type locality for species †Eutrephoceras †Exogyra †Exogyra costata †Exogyra ponderosa Contents A B C D E F G H I J K L M N O P Q R S T...

gracilistylis †Eulima monmouthensis †Euspira †Eutrephoceras †Exogyra †Exogyra costata †Exogyra ponderosa †Exogyra upatoiensis Gemmula Ginglymostoma Glossus Glycymeris...

†Amphidonte Fischer von Waldheim, 1829 Genus †Costagyra Vialov, 1936 Genus †Exogyra Say, 1820 Genus †Fluctogyra Vialov, 1936 Genus †Gryphaeostrea Conrad, 1865...

†Eutrephoceras †Eutrephoceras dekayi †Ewingia †Ewingia problematica †Exogyra †Exogyra costata Contents A B C D E F G H I J K L M N O P Q R S T U V W X Y...

Gevrili; of the Hauterivian, Hoplites radiatus, Crioceras capricornu, Exogyra Couloni and Toxaster complanatus. The marine equivalents of these rocks...

dekayi †Exiteloceras †Exiteloceras jenneyi †Exogyra †Exogyra cancellata †Exogyra costata †Exogyra ponderosa †Exogyra ponderosa erraticostata Contents A B C...

gracilistylis †Eulima monmouthensis †Euspira †Eutrephoceras †Exogyra †Exogyra costata †Exogyra ponderosa †Exogyra upatoiensis Fusinus †Gegania Gemmula †Gervillia Ginglymostoma...

report †Eunaticina †Euomphaloceras †Euspira †Exogyra †Exogyra acroumbonata †Exogyra lancha †Exogyra levis †Exogyra olisiponensis †Fagesia †Gervillia †Gervillia...

bivalves also constructed reefs in the Gulf coast region. Another bivalve, Exogyra, was so common its fossils are found in almost every Cretaceous marine...

†Eufistulana ripleyana †Eufistulina †Euspira †Euspira rectilabrum †Exogyra †Exogyra costata †Fulgerca Fusinus †Fusinus macnairyensis – or unidentified...

†Discoscaphites conradi †Douvilleiceras †Echinocorys †Eutrephoceras †Exogyra †Exogyra costata †Exogyra ponderosa †Gaudryceras †Heminautilus †Hoploscaphites †Inoceramus...