Genus: Ceteirthrosaurus SEELEY, 1869
Etymology: Greek, ketos, “whale”, Greek, arthron, “joint” and Greek, sauros, “lizard”: Whale joint lizard.

Species: walkeri (SEELEY, 1869) (nomen dubium)
Etymology:
= 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.

Biostratigraphy:

Age: Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: A propodial.

Referred material:

CAMSM X50170: A propodial.
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