Colymbosaurinae

Post author:Adam S. Smith
Post published:29/01/2026
Post category:Colymbosaurinae

under construction

Colymbosaurus

Post author:Adam S. Smith
Post published:18/10/2020
Post category:Colymbosaurinae Cryptoclididae Genus page Plesiosauria Plesiosauroidea

Left hindlimb of Colymbosaurus megadeirus (CAMSM J.29596etc), modified from Benson and Bowdler (2014)

Colymbosaurus is a colymbosaurine (derived cryptoclidid) from the Late Jurassic of the UK and Svalbard, Norway. Two valid species are known, C. megadeirus from the UK, and C. svalbardensis from Svalbard, Norway. The genus is known from the Kimmeridgian, Tithonian, and possibly early Berriasian (Late Jurassic–possibly Early Cretaceous). Benson and Bowdler (2014)…