Pelagiellidae


Pelagiellidae is an extinct family of Paleozoic fossil 'snails'. Some material assigned to this taxon represents gastropod molluscs, but some chaeta-bearing specimens first assigned to Pelagiella are perhaps better interpreted as tube-bearing annelid worms.

Mineralogy

Aragonite, with various microstructures - details in reference

Taxonomy

The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005 categorizes Pelagiellidae in the superfamilia Pelagielloidea within the
Paleozoic molluscs of uncertain systematic position. This family has no subfamilies.
According to P. Yu. Parkhaev, the family Pelagiellidae is in the order Pelagiellifomes MacKinnon, 1985 within the subclass Archaeobranchia Parkhaev, 2001, in the class Helcionelloida Peel, 1991.

Genera

Genera in the family Pelagiellidae include:Pelagiella Matthew, 1895 - type genus of the family Pelagiellidae
  • * Pelagiella atlantoides - synonym: Cyrtolithes atlantoides
  • * Pelagiella emeishanensis -
  • * Pelagiella exigua - synonym: Pseudopelagiella exiguaProeccyliopterus Kobayashi, 1962Protoscaevogyra Kobayashi, 1939Cambretina Horný, 1964Costipelagiella Horný, 1964