Gastropoda - Seguenzioidea - Eucyclidae
Synonyms: Calliomphalus (Garramites) Stephenson 1941, Garramites Stephenson 1941
Parent taxon: Calliomphalus according to T. Kase 1984
See also Kosnik 2002, Sepkoski 2002, Sohl 1960 and Stephenson 1941
Sister taxa: Calliomphalus (Planolateralus), Calliomphalus (Planolateralus) angustus, Calliomphalus (Planolateralus) conanti, Calliomphalus (Planolateralus) decoris, Calliomphalus bicarinatus, Calliomphalus galalaensis, Calliomphalus microcancelli
Subtaxa: Calliomphalus (Calliomphalus) nitidus Calliomphalus (Calliomphalus) paucispirilus
Ecology: epifaunal grazer
Distribution:
• Cretaceous of Egypt (1 collection), United States (19: California, Delaware, Mississippi, Texas)
Total: 20 collections each including a single occurrence