Archinacellidae is an extinct family of paleozoic molluscs of uncertain position (Gastropoda or Monoplacophora).
Description
These are cap-shaped fossil shells.
Taxonomy
The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005 categorizes Archinacellidae in the superfamilia Archinacelloidea within the Paleozoic molluscs of uncertain systematic position. This family has no subfamilies.
Genera
Genera in the family Archinacellidae include:
- Archinacella Ulrich & Scofield, 1897 â type genus of the family Archinacellidae
- Archinacella powersi Ulrich & Scofield, 1897 â type species
- Archinacella instabilis (Billings, 1865)
- Barrandicella Peel & Horný, 1999
- Barrandicellopsis Horný, 2000
- Barrandicellopsis ovata â synonym: Archinacella ovata Barrande in Perner, 1903 â Archinacella ovata var. elevata Barrande in Perner, 1903 â type species, Middle Ordovician from Bohemia
- Barrandicellopsis extenuata â synonym: Orthonychia extenuata Barrande in Perner, 1903 â probably belongs to genus Barrandicellopsis, Middle Ordovician from Bohemia
References
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