Knefastia polygona

Knefastia polygona
Shell of Knefastia polygona (Specimen at MNHN, Paris)
Scientific 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) polygonaDeshayes, 1834

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

Description

The length of the shell attains 20 mm.

Distribution

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

References

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

• MNHN, Paris: Knefastia polygona