Genus: Plesiosaurus non CONYBEARE, 1821
Species: grandis OWEN, 1839
= Pliosaurus grandis OWEN, 1839
Etymology:
Holotype:
Locality: Dorset County, England, Southern United Kingdom.
Horizon: Kimmeridge Clay.
Biostratigraphy:
Age: Kimmeridgian Stage, Middle Malm Epoch, Late Jurassic.
Material: 3 propodials and a triradiate scapula.