Rodzaj Purpurina d’Orbigny, 1850

Gatunek typowy
Purpurina bellona d’Orbigny, 1850. Bajocian (Mid Jurassic), Bayeux, Calvados, France.

Opis

Shell moderately large to medium sized. Spire short. Whorls more or less broad, angulated with adapical ramp. Below angulation, whorl weakly convex and ornamented with numerous axial and spiral ribs. Body whorl very large, base rounded with predominant spiral sculpture. Aperture large, ovate. Outer lip almost even up to angulation. Thin inner lip covers umbilical chink.

Synonimy

Zasięg czasowy

Carnian (Late Triassic) to Oxfordian (Late Jurassic)

Literatura

d’Orbigny, A. 1850a. Terrains Jurassiques. Paléontologie Française 2, 1–621.

Kaim, A. 2004. The evolution of conch ontogeny in Mesozoic open sea gastropods. Palaeontologia Polonica 62, 3–183.


Specyfikacja

Królestwo
ANIMALIA 

Typ
MOLLUSCA

Podtyp
CONCHIFERA

Gromada
GASTROPODA

Podgromada
PROSOBRANCHIA

Rząd
Stenoglossa

Podrząd
Volutina

Rodzina
Purpurinidae

Rodzaj
Purpurina


Tags:
Utworzone 2020/06/29 16:42 przez Piotr Gryz

This wiki is licensed under a Creative Commons 2.0 license
XWiki Enterprise 6.4.8 - Documentation