Definition of Helicotomidae. Meaning of Helicotomidae. Synonyms of Helicotomidae

- Helicotomidae is an extinct family of Paleozoic molluscs (gastropods?) with anisostrophically coiled s**** of uncertain position (Gastropoda?) (according...
- included the following three families. Euomphalidae de Konick, 1881 Helicotomidae Wenz, 1938 Omphalotrochidae Knight, 1945 Prior to, R.C. Moore in 1952...
- and Macluritoidea. The Ophiletoidea were separated from the family Helicotomidae of the Euomphaloidea (Euomphalatacea in the original form). The Oriostomatoidea...
- Amphelissa is an extinct genus of paleozoic gastropod in the family Helicotomidae. The genus was first named by British paleontologist Robert Etheridge...
- Sinuitidae † Tremanotidae † Tropidodiscidae Euomphaloidea † Euomphalidae † Helicotomidae † Lesueurillidae † Omphalocirridae † Omphalotrochidae Macluritoidea...
- 1896 †Subfamily Spinicharybdiinae Rohr, Blodgett & Frýda, 2008 †Family Helicotomidae Wenz, 1938 †Family Lesueurillidae P. J. Wagner, 2002 †Family Omphalocirridae...
- Sinuitidae † Tremanotidae † Tropidodiscidae †Euomphaloidea † Euomphalidae † Helicotomidae † Lesueurillidae † Omphalocirridae † Omphalotrochidae †Macluritoidea...