Ostraea Bivalve Fossil Sea Shell Prehistoric Oyster Cretaceous Collection (1)

Description

Origin : Morocco (Agadir Province)

Geological era : Early Cretaceous (Aptian)

Age : 120 million of years

Bivalve Fossil Seashell mm 50 x 40 x 27 gr 60 Oyster Ostraea sp. Lamellibranchs Pelecypods Prehistoric Molluscs Cretaceous Mesozoic Collecting Paleontology Museum.

Pleasant fossil find of Ostraeidae Shell from the lower Cretaceous, representative collectible sample of good quality, with evident well-preserved anterior and posterior details of the shape of the shell of both valves and the wrinkles or ornamental wavy scaly lamellae. Only a piece, as in photos.

Ostraea (common name: True Oyster) is a genus of marine bivalve molluscs belonging to the Ostreidae family with a rounded shell covered with wavy scaly lamellae.
The shell tends to be bumpy due to attachment to a substrate. The two valves are unequal and the lower one, to which the animal is anchored, is larger and more hollow than the upper one. It lives in all the seas of Europe at shallow depths,
This genre is very old. It is known in the fossil record from the Permian to the Quaternary (age range: 259 to 0.0 million years ago). Fossil shells of these molluscs can be found all over the world. The genus Ostraea includes approximately 150 extinct species.