Species: gardneri SEELEY, 1877
Etymology:
= Plesiosaurus constrictus OWEN, 1850
Holotype: BMNH 47295
Locality: East Wear Bay, Folkestone, (TR 243366), Kent Island, England, Southern United Kingdom.
Horizon: Lower-Upper Gault.
Biostratigraphy:
Age: Albian Stage, Middle Gallic Subepoch, Uppermost Early Cretaceous Epoch, Early Cretaceous.
Locality: Tooth and vertebrae.
Note: Gastroliths were found.
Referred material:
= Plesiosaurus gardneri (SEELEY, 1877) WHIDBORNE, 1881
Etymology:Holotype:
Locality: Steyning, Sussex County, England, Southern United Kingdom.
Horizon: Chalk.
Biostratigraphy:
Age: Early Cretaceous.
Material: Anterior cervical vertebrae.
Referred material:
DELAIR, 1959
Locality: Unknown locality in Dorset County, England, Southern United Kingdom.
Horizon:
Biostratigraphy:
Age: Early Cretaceous.
Material:
BMNH 28684: A small immature dorsal centrum.