Species: rugosus (OWEN, 1840) SEELEY, 1874
Etymology: Latin, rugosus, "wrinkled."
= Plesiosaurus rugosus OWEN, 1840

Holotype:

Locality: Granby, Nottinghamshire County, England, Southern United Kingdom.

Horizon:

Biostratigraphy: Asteroceras obtusum zone, Subzone of Asteroceras stellare?

Age: Basel Upper Sinemurian Stage, Lower Lias Epoch, Early Early Jurassic.

Material: Vertebrae, girdles and limb bones.

Referred material:

OWEN, 1840

Syntype: BRSMB Cb 2458

Locality: Aust Cliff, Avon (ST 565895-ST 572901, Bristol, Gloucestershire County, England, Southern United Kingdom.

Horizon: Westbury Formation, ‘Rhaetic bone bed’.

Biostratigraphy:

Age: Rhaetian Stage, Uppermost Late Triassic Epoch, Late Triassic.

Material: Vertebrae.

 

 

A caudal vertebra.

Neotype: 14435

Locality: England, Southern United Kingdom.

Horizon:

Biostratigraphy:

Age: Lias Epoch, Early Jurassic.

Material: Postcranial skeleton.

 

MENNER, 1992

Locality: Siberia, Asian Russia.

Horizon:

Biostratigraphy:

Age: Middle Jurassic.

Material:

Number: Not given: Fragmentary skeleton.

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Species: dubius BLAKE, in TATE & BLAKE, 1876
Etymology:

Holotype:

Locality: Whitby, Yorkshire County, England, Southern United Kingdom.

Horizon: Upper Liassic.

Biostratigraphy: Harpoceras faleifer zone.

Age: Upper Lias Epoch, Upper Early Jurassic.

Material: Skull and skeleton.