Gastropoda - Sorbeoconcha - Caecidae
Parent taxon: Caecum according to Fleming 1813
Sister taxa: Caecum (Brochina), Caecum (Defolinia), Caecum alterum, Caecum anellifer, Caecum armoricum, Caecum beaufortensis, Caecum californicum, Caecum calvertense, Caecum campe, Caecum chipolanum, Caecum circumvolutum, Caecum cooperi, Caecum crebricinctum, Caecum cycloferum, Caecum glabrum, Caecum greensboroense, Caecum imbricatum, Caecum johnsoni, Caecum licalum, Caecum mammillatum, Caecum mexicanum, Caecum patuxentium, Caecum plicatum, Caecum properegulare, Caecum quadratum, Caecum ryssotitum, Caecum tomaculum, Caecum veracruzanum
Subtaxa: Caecum (Caecum) regulare
Ecology: epifaunal grazer
Distribution:
• Quaternary of United States (5: Florida, North Carolina collections)
• Pliocene of Mexico (2), United States (2: Florida, North Carolina), Venezuela (4)
• Miocene of Panama (1)
Total: 14 collections including 18 occurrences