Knefastia polygona is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.[1]

Knefastia polygona
Shell of Knefastia polygona (Specimen at MNHN, Paris)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Pseudomelatomidae
Genus: Knefastia
Species:
K. polygona
Binomial name
Knefastia polygona
(G.P. Deshayes, 1834 )
Synonyms
  • Surcula polygona (Deshayes, 1834)
  • Turricula (Knefastia) polygona Deshayes, 1834

Description edit

The length of the shell attains 20 mm.

Distribution edit

This extinct marine species was found in Eocene strata in the Paris basin, France.

References edit

  1. ^ "WMSD - Worldwide Mollusc Species Database – Knefastia polygona". bagniliggia.it. Retrieved 8 November 2018.
  • Deshayes, G. P., 1834–1835, Description des coquilles fossiles des environs de Paris, t. II, fasc. 5 et 6, in-4°, Paris, 1834–1835.
  • Cossmann (M.) & Pissarro (G.), 1913 Iconographie complète des coquilles fossiles de l'Éocène des environs de Paris, t. 2, p. pp. 46–65
  • Le Renard (J.) & Pacaud (J.-M.), 1995 Révision des Mollusques paléogènes du Bassin de Paris. 2 - Liste des références primaires des espèces. Cossmanniana, t. 3, vol. 3, pp. 65–132
  • Caze (B.), Merle (D.), Saint Martin (J.-P.) & Pacaud (J.-M.), 2012 Les mollusques éocènes se dévoilent sous ultraviolets. Fossiles. Revue française de paléontologie, t. hors série n° 3, pp. 15–56

External links edit