Holopeidae
Introduction †'''Holopeidae''' is an extinct family of paleozoic gastropod mollusks. These molluscs were stationary epifaunal suspension feeders.This family is unassigned to superfamily. This family has no subfamilies.
Genera Genera in the family Holopeidae include:* ''Cyclora''* ''Eopagodea''* ''Holopea'' J. Hall, 1847* ''Pachystrophia'' Perner, 1903* ''Ptychonema'' Perner, 1903* ''Raphistomina'' Ulrich & Scofield, 1897* ''Sinutropis'' Perner, 1903 but in family Euomphalidae* ''Umbospira'' Perner, 1903
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