Genus: Ceteirthrosaurus SEELEY, 1869
Etymology: Greek, ketos, “whale”, Greek, arthron, “joint” and Greek, sauros, “lizard”: Whale joint lizard.
Species: walkeri (SEELEY, 1869)
= Cetarthrosaurus walkeri SEELEY, 1869 (nomen dubium)
Holotype: CAMSM B58069
Locality: From near the railway-bridge at Ditton, North East of Cambridge, Cambridgeshire County, England, Southern United Kingdom.
Horizon: Upper Greensand.
Age: Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.
Material: A propodial.
CAMSM X50170: A propodial.