Rastellum gregareum (J. Sowerby)

Scale bar = 5cm

Description

Upper Jurassic, Oxford Clay
Dives
Calvados, Normandy
France
M2060
Description:

An extinct species of an extant genus belonging to the family Ostreidae (the true oysters).
Moore, C.
Ostrea gregaria Sowerby

Classification

Mollusca
Loboconcha
Bivalvia
Pteriomorphia
Ostreoida
Ostreina Superfamily Ostreoidea
Ostreidae
Rastellum
gregareum