Euomphalidae
Euomphalidae is an extinct family of Paleozoic to early Mesozoic marine molluscs which may be gastropods with anisostrophically coiled shells.
The shells show a selenizone.Genera in the family Euomphalidae include:
- Acanthonema
- Alaionema
- Amphiscapha
- Anisostoma
- Araeonema - synonym: Palaeoturbina
- Austerum
- Bicarina
- Biformispira
- Centrifugus - synonym: Hisingeria
- Coelodiscus
- Cylicioscapha
- Discotropis
- Eleutherospira
- Elkoceras
- Euomphalopsis
- Euomphalus J. de C. Sowerby, 1814 - type genus - synonyms: Phymatifer, Schizostoma, Paromphalus.
- Fletcherviewia
- Goldfussoceras
- Hippocampoides
- Kiaeromphalus
- Leptomphalus
- Linsleyella
- Nevadaspira
- Nodeuomphalus
- Novakopteron
- Nummocalcar
- Odontomaria
- Offleyotrochus
- Phanerotinus
- Planotectus
- Platybasis
- Pleuronotus
- Poleumita - synonyms: Polytropina, Polytropis.
- Rhabdotocochlis
- Saturnotropis
- Sinistrispira
- Sinutropis
- Spinicharybdiinae
- Straparollus
- Stusakia
- Tychobrahea
- Weeksia
- Woehrmannia
