Megalodon (bivalve)

Megalodon; Temporal range: Early Devonian–Early Jurassic ~
	Fossil of Megalodon
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	†Megalodontida
Superfamily:	†Megalodontoidea
Family:	†Megalodontidae
Genus:	†Megalodon; Sowerby, 1827
Species
	See text.
Synonyms
	Megalodon (Megalodon) Sowerby, 1827; Megalodonta Goldfuss, 1832; Megalodus Goldfuss, 1837;

Megalodon is an extinct genus of bivalve molluscs that reportedly lived from the Devonian to the Early Jurassic period.^[2] 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.^[3]

Species

†Megalodon hungaricum
†Megalodon longjiangensis
†Megalodon rostratiforme
†Megalodon yanceyi
†Megalodon abbreviatus

^[2]

Distribution

Fossils of the bivalve Megalodon have been found in:^[2]

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

References

^ Bieler R, Bouchet P, Gofas S, Marshall B, Rosenberg G, La Perna R, Neubauer TA, Sartori AF, Schneider S, Vos C, ter Poorten JJ, Taylor J, Dijkstra H, Finn J, Bank R, Neubert E, Moretzsohn F, Faber M, Houart R, Picton B, Garcia-Alvarez O, eds. (2025). "Megalodon J. De C. Sowerby, 1827 †". MolluscaBase. World Register of Marine Species. Retrieved 15 December 2025.
^ ^a ^b ^c Megalodon in the Paleobiology Database
^ Skelton, Peter W. & Smith, Andrew B. (2000). "Preliminary phylogeny for rudist bivalves: sifting clades from grades". In Harper, E. M.; Taylor, J. D. & Crame, J. A. (eds.). Evolutionary Biology of the Bivalvia. Vol. Special Publication No. 177. Bath, UK: Geological Society. pp. 97–127. ISBN 1-86239-076-2.

[WORM-1] Bieler R, Bouchet P, Gofas S, Marshall B, Rosenberg G, La Perna R, Neubauer TA, Sartori AF, Schneider S, Vos C, ter Poorten JJ, Taylor J, Dijkstra H, Finn J, Bank R, Neubert E, Moretzsohn F, Faber M, Houart R, Picton B, Garcia-Alvarez O, eds. (2025). "Megalodon J. De C. Sowerby, 1827 †". MolluscaBase. World Register of Marine Species. Retrieved 15 December 2025.

[PBDB-2] Megalodon in the Paleobiology Database

[3] Skelton, Peter W. & Smith, Andrew B. (2000). "Preliminary phylogeny for rudist bivalves: sifting clades from grades". In Harper, E. M.; Taylor, J. D. & Crame, J. A. (eds.). Evolutionary Biology of the Bivalvia. Vol. Special Publication No. 177. Bath, UK: Geological Society. pp. 97–127. ISBN 1-86239-076-2.

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