Bivalves belong to the invertebrate phylum Mollusca, which also includes snails, squids, and octopuses.
Some well-known bivalves include clams, scallops, mussels, and oysters.
All bivalves are aquatic, encompassing both marine and fresh-water species.
They first appeared in the fossil record over 500 million years ago.

Bivalve Plicatula sp. S bi14 Dahkla, Sahara Desert, Morocco. Cretaceous 100 million years old Specimen is 37x30x15mm. Aust. $10.00 All sizes are approximate This is a one only fossil, it may not be available. If you require a fossil bigger or smaller please e-mail us with your request.

Bivalve Plicatula sp. S bi15 Dahkla, Sahara Desert, Morocco. Cretaceous 100 million years old Specimen is 44x36x15mm. Aust. $15.00 All sizes are approximate This is a one only fossil, it may not be available. If you require a fossil bigger or smaller please e-mail us with your request.

Bivalve Plicatula sp. S bi16 Dahkla, Sahara Desert, Morocco. Cretaceous 100 million years old Specimen is 41x33x16mm. Aust. $15.00 All sizes are approximate This is a one only fossil, it may not be available. If you require a fossil bigger or smaller please e-mail us with your request.

This is an Australian fossil; for export sales, we need to obtain a letter of clearance.

Bivalve Stutchburia sp. 24-20 Gerringong, N.S.W. Australia. Permian 270 million years old Specimen is 57x29x15mm. Aust. $5.00 All sizes are approximate This is a one only fossil, it may not be available. If you require a fossil bigger or smaller please e-mail us with your request.

This is an Australian fossil; for export sales, we need to obtain a letter of clearance.

Bivalve Stutchburia sp. 24-23 Gerringong, N.S.W. Australia. Permian 270 million years old Specimen is 24x12x9mm. Aust. $5.00 All sizes are approximate This is a one only fossil, it may not be available. If you require a fossil bigger or smaller please e-mail us with your request.

Bi-valve Unidentified. S bi01 West Java, Indonesia. Pleistocene 2 million years old Specimen is 50x33mm. Aust. $15.00 All sizes are approximate This is a one only fossil and may not be available.

Polished Bi-valve Unidentified. S bi11 Majunga, Madagascar. Jurassic 150 million years old Specimen is 37x35mm. Aust. $15.00 All sizes are approximate This is a one only fossil and may not be available. If you require a fossil bigger or smaller please e-mail us with your request.

Polished Bi-valve Unidentified. S bi10 Majunga, Madagascar. Jurassic 150 million years old Specimen is 40x40mm. Aust. $15.00 All sizes are approximate This fossil is sold, but we have another similar avaialbe.

Polished Bi-valve Mercenaria. S b12 Mahajanga, Madagascar. Jurassic 150 million years old Specimen is 75x54mm. Aust. $35.00 All sizes are approximate This is a one only fossil and may not be available. If you require a fossil bigger or smaller please e-mail us with your request.

Polished Bi-valve Mercenaria. S b13 Mahajanga, Madagascar. Jurassic 150 million years old Specimen is 67x50mm. Aust. $35.00 All sizes are approximate This is a one only fossil and may not be available. If you require a fossil bigger or smaller please e-mail us with your request.

Scallop Chesapecten jeffersonius. S sc01 Yorktown Formation, Williamsburg, Virginia, U.S.A. Pliocene 4 million years old Specimen is 165x123mm. Aust. $75.00 All sizes are approximate This is a one only fossil and may not be available. If you require a fossil bigger or smaller please e-mail us with your request.