Specimen number: CAMSM J.63919 Institution/Museum: Taxa: Colymbosaurus megadeirus Specimen status: , Age: JurassicLate JurassicKimmeridgian / Tithonian Horizon (rock units): JurassicUpper JurassicKimmeridge Clay Formation / Kimmeridgian / Tithonian Locality: UKCambridgeshireHaddenham

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