{{Short description|Extinct family of gastropods}} {{Taxobox | fossil_range = | image = | image_caption = | regnum = Animalia | phylum = Mollusca | classis = Gastropoda | superfamilia = Euomphaloidea | familia = '''Helicotomidae''' | familia_authority = Wenz, 1938<ref>{{in lang|de}} Wenz W. A. (March) 1938. Handbuch der Paläozoologie, 6(1). Page 117.</ref> | subdivision_ranks = Genera | subdivision = See text | synonyms = }}
'''Helicotomidae''' is an extinct family of Paleozoic molluscs (gastropods?) with anisostrophically coiled shells of uncertain position (Gastropoda?) (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).
== Taxonomy == The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005<ref name="Bouchet">Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdés Á. & Warén A. 2005. ''Classification and nomenclator of gastropod families''. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. {{ISBN|3-925919-72-4}}. ISSN 0076-2997. 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278</ref> categorizes Helicotomidae in the superfamilia Euomphaloidea within the Paleozoic molluscs with anisostrophically coiled shells of uncertain position (Gastropoda?). This family has no subfamilies.
== Genera == Genera in the family Helicotomidae include:<ref>''Helicotomidae''. The Paleobiology Database, accessed 13 August 2009.</ref> * ''Amphelissa'' * ''Boucotspira'' * ''Boucotspira'' * ''Burdikinia'' - synonym: ''Polyamma''. * ''Colpomphalus'' * ''Helicotoma'' Satler, 1859 - type genus of the family Helicotomidae * ''Lophonema'' - synonym: ''Polhemia''. * ''Ophiletina'' * ''Palaeomphalus'' * ''Paraviviana'' * ''Walcottoma'' * ''Yochelsoniella''
== References == {{Reflist}}
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Category:Prehistoric mollusc families Category:Paleozoic molluscs
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