TENNESSEE: Cretaceous, Ripley Formation

Screen 5: Ptenoglossa, Janthinoidea, Buccinoidea
Seila quadrilirata Aciculiscala acuta
Seila quadrilirata (5 mm),colno 27049 Aciculiscala acuta (2 mm), colno 27078
Acirsa species Buccitriton sagenum
Acirsa species (8 mm),colno 27077 Buccitriton sagenum (23 mm),colno 24195
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Euomphaloidea Patelloidea Trochoidea Cirroidea Stromboidea Cerithioidea Ptenoglossa Janthinoidea
Buccinoidea Columbelloidea Conoidea Mitroidea Turbinelloidea Volutoidea Muricoidea Naticoidea
Calyptraeoidea Architectonicoidea Pyramidelloidea Acteonoidea Clausilioidea Trigonioidea Crassatelloidea Cardioidea