Megalodon is an extinct genus of bivalve molluscs that reportedly lived from the Devonian to the Early Jurassic period. It is not clear, however, that all the fossils assigned to Megalodon from that span of time really belong in the same genus. Jurassic relatives of Megalodon such as Pachyrisma grande were closely related to the rudists.
Species †Megalodon hungaricum †Megalodon longjiangensis †Megalodon rostratiforme †Megalodon yanceyi †Megalodon abbreviatus
Distribution Fossils of the bivalve Megalodon have been found in:
Devonian Austria, Canada (Alberta), Germany, and Italy Permian China and Malaysia Triassic Bulgaria, Colombia, Hungary, Italy, Serbia and Montenegro and the United Arab Emirates Jurassic Italy and Morocco
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