Gastropoda - Sorbeoconcha - Caecidae
Full reference: N. E. Weisbord. 1962. Late Cenozoic gastropods from northern Venezuela. Bulletins of American Paleontology 42(193)
Parent taxon: Caecum according to Weisbord 1962
Sister taxa: Caecum (Brochina), Caecum (Caecum), 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 mammillatum, Caecum mexicanum, Caecum patuxentium, Caecum plicatum, Caecum properegulare, Caecum quadratum, Caecum ryssotitum, Caecum tomaculum, Caecum veracruzanum
Subtaxa: Caecum (Defolinia) flemingi Caecum (Defolinia) putnamensis Caecum (Defolinia) virginianum
Type: Caecum (Defolinia) tomaculum
Ecology: epifaunal grazer
Distribution:
• Quaternary of United States (2: North Carolina collections)
• Pliocene of United States (1: North Carolina)
Total: 3 collections each including a single occurrence