Genus: Eucercosaurus SEELEY, 1879 (nomen dubium)
Etymology: Greek, eu-, “good, ture”, Greek, kerkos, “tail” and Greek, sauros, “lizard”: “Good tailed lizard”.
= Eucerosaurus ROMER, 1966 (sic)

Species: tanyspondylus SEELEY, 1879 (nomen dubium)
Etymology: Greek, tany, "long, stretched out" and Greek, spondylus, "vertebrae."
= Anoplosaurus tanyspondylus (SEELEY, 1879) STEEL, 1969 (nomen dubium)

Syntypes: CAMSM B55610-29 (old Woodwardian Museum)

Locality: Trumpington, near Cambridge, Cambridge County, England, Southern United Kingdom.

Horizon: Cambridge Greensand Member, West Melbury Marly Chalk Formation (old Upper Greensand).

Biostratigraphy:

Age: Cenomanian Stage, Late Gallic Subepoch, Early Gulf Epoch, Middle Cretaceous (old Late Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous).

Material: 19 centra, 3 sacral, 4 dorsal and 12 caudal, and a neural arch.