Species: arcuatus (OWEN, 1840) ANDREWS, 1922
Etymology: Latin, arcuatus, "bent, curved."
= Plesiosaurus arcuatus OWEN, 1840
= Thaumatosaurus arcuatus (OWEN, 1840) LYDEKKER, 1889

Holotype: BMNH 2030

Locality: Street, Bitton, Gloucestershire County, England, Southern United Kingdom.

Horizon:

Biostratigraphy: pre-Psiloceras planorbis beds.

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

Material: Fragmentary mandible, vertebrae, girdle and limb bones.

Referred Material:

BMNH 2039, 2027,2028, 2029, R.1317, R1318, 2061, 2047, R1319: and seem to compare the majority of a single skeleton.

From Charlton, Street and localities near Bath, England.

 

CRUICKSHANK, 1994

Locality: Exact locality unknown, Lyme Regis, Dorset County, England, Southern United Kingdom.

Horizon:

Biostratigraphy:

Age: Hettangian Stage, Lower Lias Epoch, Early Jurassic.

Material:

Geological Collections, University Museum, Parks Road, OUM J.28585: Disarticulated partial skull, right premaxilla, right maxilla, parietals, and frontals, squamosal and quadrates, basicranium, both exoccipital-opisthotics and left postorbital bar, and jugal region, in addition various unidentifiable fragments, presumed to be part of the skull, are present, complete mandible, left and right ischia, ?left ilium, left pubis, several ribs, gastralia, and haemal arches, a podial element is a doubtful part of the specimen of an immature plesiosaur.

 

OWEN, 1839

Locality: Lyme Regis coast, Pinhay Bay- Charmouth, (SY 3291-SY 3794), Dorset County, England, Southern United Kingdom.

Horizon:

Biostratigraphy: pre-Psiloceras planorbis beds.

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

Material:

Oxford University Museum: Dentary.

BMNH 2124: Tooth.

BMNH 40094: Tooth.