Dimorphoptychia

Dimorphoptychia Temporal range: Eocene[1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Neritimorpha clade Cycloneritimorpha
Superfamily:	Helicinoidea
Family:	Helicinidae
Subfamily:	† Dimorphoptychiinae
Genus:	† Dimorphoptychia Sandberger, 1871[2]

Dimorphoptychia is an extinct genus of land snails with an operculum, terrestrial gastropod mollusks in the family Helicinidae.[3]

Dimorphoptychia is the type genus of the subfamily Dimorphoptychiinae, which is likewise fully extinct today.[3]

Species

Species within the genus Dimorphoptychia include:

• Dimorphoptychia? changzhouensis Yu, 1977 [1]

References

1. Solem A. (1983). "Lost or kept internal whorls: ordinal differences in land snails". Journal of Molluscan Studies 49(supp12A) 172-178. abstract.
2. Sandberger (1871). Land- u. Süssw.-Conch. Vorwelt, 149.
3. Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. 47 (1–2). Hackenheim, Germany: ConchBooks: 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.