- Cardiomorpha Vetusta
- Cardiomorpha Archiacana
- Genus Cardita
- Cardita Abbreviata
- Cardita Alticostata
- Cardita Bilineata
- Cardita Blandingi
- Cardita Borealis
- Cardita Carolinensis
- Cardita Decisa
- Cardita Densata
- Cardita Granulata
- Cardita Parva
- Cardita Perplana
- Cardita Planicosta
- Cardita Rotunda
- Cardita Subquadrata
- Cardita Subrotunda
- Cardita Trapezium
- Cardita Tridentata
- Cardita Vigintinaria
- Genus Carditamera
- Genus Cardium
- Cardium Acutilaqueatum
- Cardium Aleuticum
- Cardium Altum
- Cardium Californiense
- Cardium Craticuloides
- Cardium Decoratum
- Cardium Diversum
- Cardium Elegantulum
- Cardium Eversum
- Cardium Globosum
- Cardium Grnlandicum
- Cardium Hillanum
- Cardium Isocardia
- Cardium Laqueatum
- Cardium Leptopleura
- Cardium Magnum
- Cardium Marmoreum
- Cardium Mortoni
- Cardium Muricatum
- Cardium Nicolleti
- Cardium Pedernalis
- Cardium Quadrans
- Cardium Sancti-Sabae
- Cardium Sublineatum
- Cardium Transversale
- Cardium Ventricosum
- Cardium Vetustum
- Cardium Vicksburgense
- Cardium Virginianum
- Genus Chama
- Chama Congregata
- Chama Mississippiensis
- Genus Clavigella
- Cleidophorus Planulatus
- Genus Corbis
- Genus Corbula
- Corbula Alabamiensis
- Corbula Alta
- Corbula Compressa
- Corbula Contracta
- Corbula Cuneata
- Corbula Elevata
- Corbula Engonata
- Corbula Gibbosa
- Corbula Idonea
- Corbula Inaequale
- Corbula Intastriata
- Corbula Nasuta
- Corbula Murchisonii
- Corbula Oniscus
- Genus Crassatella
- Crassatella Alaeformis
- Crassatella Alta
- Crassatella Capri-Cranium
- Crassatella Marylandica
- Crassatella Melina
- Crassatella Mississippiensis
- Crassatella Palmula
- Crassatella Protexta
- Crassatella Rhomboidea
- Crassatella Turgidula
- Crassatella Undulata
- Crassatella Vadosa
- Genus Cucullaea
- Cucullaea Antrosa
- Cucullaea Gigantea
- Cucullaea Laevis
- Cucullea Onochela
- Cucullea Opima
- Cucullea Ovata
- Cucullea Transversa
- Cucullaea Vulgaris
- Cultellus Caribaeus
- Genus Cumingia
- Genus Cypricardia
- Cypricardia Arata
- Cypricardia Contracta
- Cypricardia Occidentalis
- Cypricardia Rhombea
- Cypricardia Texana
- Genus Cypricardites
- Cypricardites Alta
- Cypricardites Angustata
- Cypricardites Bisulcata
- Cypricardites Cattskillensis
- Cypricardites Chemungensis
- Cypricardites Concentrica
- Cypricardites Elongatus
- Cypricardites Marcellensis
- Cypricardites Mytiloides
- Cypricardites Oblonga
- Cypricardites Radiata
- Cypricardites Recta
- Cypricardites Recurva
- Cypricardites Rugosa
- Cypricardites Subalata
- Cypricardites Truncata
- Genus Cyrena
- Cyrena Carolinensis
- Genus Cytherea
- Cytherea Aequorea
- Cytherea Albaria
- Cytherea Astartiformis
- Cytherea Concentrica
- Cytherea Convexa
- Cytherea Discoidalis
- Cytherea Elevata
- Cytherea Erycinoides
- Cytherea Eversa
- Cytherea Excavata
- Cytheria Floridana
- Cytherea Gigantea
- Cytherea Hydana
- Cytherea Imitabilis
- Cytherea Lenticularis
- Cytherea Liciata
- Cytherea Marylandica
- Cytherea Metastriata
- Cytherea Minima
- Cytherea Mississippiensis
- Cytherea Missouriana
- Cytheria Mortoni
- Cytherea Nuttalli
- Cytherea Obovata
- Cytheria Oregonensis
- Cytherea Ovata
- Cytherea Pandata
- Cytheria Parvula
- Cytherea Perbrevis
- Cytherea Perovata
- Cytherea Poulsoni
- Cytherea Pyga
- Cytherea Reposta
- Cytherea Sayana
- Cytheria Semipalmata
- Cytherea Sobrina
- Cytherea Sphaerica
- Cytherea Subcrassa
- Cytherea Subimpressa
- Cytherea Subnasuta
- Cytherea Vespertina
- Diplodonta Americana
- Genus Donax
- Edmondia Subtruncata
- Edmondia Subangulata
- Egeria Subtrigonia
- Erycinella Ovalis
- Erycina Aequorea
- Genus Exogyra
- Genus Fistulana
- Gastrochaena Lingula
- Genus Gnathodon
- Graplelupia Moulinsii
- Genus Grateloupia
- Grammysia Bisulcata
- Genus Gryphaea
- Gryphaea Aucella
- Gryphaea Costata
- Gryphaea Convexa
- Gryphaea Costata
- Gryphaea Mutabilis
- Gryphaea Pitcheri
- Gryphaea Vomer
- Hiatella Lancea
- Genus Hippagus
- Inoceramus Alveatus
- Inoceramus Barabini
- Inoceramus Confertim-Annulatus
- Inoceramus Crispii
- Inoceramus Damnoncensis
- Inoceramus Latus
- Inoceramus Mytiloides
- Inoceramus Perovalis
- Inoceramus Senseni
- Inoceramus Striatus
- Inoceramus Undulo-Plicatus
- Genus Isocardia
- Isocardia Fraterna
- Isocardia Markoei
- Isocardia Rustica
- Isocardia Unioniformis
- Kellia Mactroides