Specimen number: CAMSM J.63919 Institution/Museum: Taxa: Colymbosaurus megadeirus Specimen status: , Age: Jurassic → Late Jurassic → Kimmeridgian / Tithonian Horizon (rock units): Jurassic → Upper Jurassic → Kimmeridge Clay Formation / Kimmeridgian / Tithonian Locality: UK → Cambridgeshire → Haddenham

A partial postcranial skeleton. One of two syntype skeletons of Colymbosaurus megadeirus. The other is CAMSM J.29596etc.