ScoliostomatidaeScoliostomatidae is an extinct family of Paleozoic fossil sea snails, marine gastropod molluscs.This family is unassigned to superfamily. This family consists of two following subfamilies : Scoliostomatinae Frýda, Blodgett & Lenz, 2002 Mitchelliinae Frýda, Blodgett & Lenz, 2002