Pterothecidae

Pterothecidae is an extinct family of Paleozoic molluscs of uncertain position, either Gastropoda or Monoplacophora, with isostrophically coiled shells.

Taxonomy

The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005 categorizes Pterothecidae in the superfamilia Bellerophontoidea within the
Paleozoic molluscs of uncertain systematic position with isostrophically coiled shells (Gastropoda or Monoplacophora).
This family consists of the following subfamilies :

Pterothecinae P. Fischer, 1883
Carinaropsinae Ulrich & Scofiled, 1897
Pedasiolinae Wahlman, 1992

Genera

Genera in the family Pterothecidae include:Pterotheca Salter, 1852 - type genus of the family Pterothecidae