Fossil, bivalve, Mytiloides labiatus, a virtually complete inflated valve on a chalk block, found in Alton, Hampshire, from Upper Cretaceous

Fossil, bivalve, Mytiloides labiatus, a virtually complete inflated valve on a chalk block, found in Alton, Hampshire, from Upper Cretaceous
Fossil, bivalve, Mytiloides labiatus, a virtually complete inflated valve on a chalk block, found in Alton, Hampshire, from Upper Cretaceous