Genus: Cetiosaurus OWEN, 1841
Etymology: Greek, keteios, “whale-like”, and Greek, sauros, "lizard": “Whale-like lizard”.
= Ceteosaurus PHILLIPS, 1871 (sic)

Species: oxoniensis PHILLIPS, 1871
Etymology: In reference to Oxfordshire County, England, where the specimen was found.

Lectoptye (OUMNH J13605-13615, J13615-16, J136190J13688, J13899

Locality: A quarry near Bletchingdon (old Kirtlington) Station, near Enslow Bridge, Oxon, Oxfordshire County, England, Southern United Kingdom.

Horizon: Forest Marble (not Great Oolite) as per Upchurch & Martin, 2003.

Biostratigraphy:

Age: Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.

Material: Fragmentary dorsal and sacral elements, portions of thoracic rib, approximately 30 anterior and middle caudal centra (some with arches and processes), 7 damged hemal arches from the anerior and middle part of the tail, scapula, damaged coracoids, left sternal plate, humeri, ulnae, portions of metacarpal, ilia, left pubis, right sichium, femora, left tibia and fibula.

Lectotype skeleton.

Paratypes:

OUMNH J1364: Portion of sternal (?) plate, a left humerus and femur of a medium-sized individual.

OUMNH J13617-8, J13780-1: Scapula, femur, tibia and fibula of a small individual.

OUMNH J13596: Dorsal half of a braincase.

Referred material:

NHMUK OR (old BMNH) R1092: Cast of the sternal bones.

NHMUK OR (old BMNH) R1093: Cast of right humerus.

NHMUK OR (old BMNH) R1094: Cast of imperfect ulna.

NHMUK OR (old BMNH) R1095: Cast of right femur.

NHMUK OR (old BMNH) R1096: Cast of tibia.

 

CLARK & BLOWS, 2023

Locality: Oakham Quarry, Gloucestershire County, England, Southern United Kingdom

Horizon: Chipping Norton Member, Chipping Norton Formation.

Biostratigraphy: Zigzagiceras zigzag zone.

Age: Lower Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.

Material:

STGCM 1944.28: Anterior caudal vertebra.

STGCM 1944.29: Small late caudal vertebra.

 

= Species: Nova MARTIN, 1987, MARTILL & CLARKE, 1994

Leicestershire Museum and Art Gallery, G 468.1968

Locality: Great Casterton Quarry, Williamson Cliffe brick-pit (TF 013080), Rutland, Rutland County, England, Southern United Kingdom.

Horizon: Upper Estuarine Series.

Biostratigraphy:

Age: Bajocian Stage, Middle Dogger Epoch, Middle Jurassic.

Material: Fragmentary skeleton.

 


LYDEKKER, 1888

Locality: Bibury, near Cirencester, Gloucestershire County, England, Southern United Kingdom.

Horizon: Great Oolite.

Biostratigraphy:

Age: Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.

Material:

NHMUK OR (old BMNH) R979: Imperfect centra of a dorsal vertebrae of a small individual.

 

Locality: Blisworth, Northamptonshire County, England, Southern United Kingdom.

Horizon: Great Oolite.

Biostratigraphy:

Age: Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.

Material:

NHMUK OR (old BMNH) 16091: Imperfect centrum of the most anterior caudal vertebra.

NHMUK OR (old BMNH) 16090: The imperfect centrum and part of the arch of a somewhat later caudal vertebra.

 

Locality: Buckinghamshire County, England, Southern United Kingdom.

Horizon: Great Oolite.

Biostratigraphy:

Age: Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.

Material:

NHMUK OR (old BMNH) 12425: Cast of the centrum of an anterior caudal vertebra.

 

REYNOLDS, 1939

Locality: New Park Quarry, Longborough, near Stow-on-the-Wold, (SP 176282), Gloucestershire County, England, Southern United Kingdom.

Horizon: Chipping Norton Member, Chipping Norton Formation.

Biostratigraphy: Zigzagiceras zigzag zone.

Age: Lower Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.

Material:

SDM 44.30-40: Caudal vertebra, coracoid, ischia, cervical rib and a dorsal rib.

CLARK & BLOWS, 2023

STGCM 1944.33, 34: Coracoids.

STGCM 1944.31, 32, 35: Ribs.

STGCM 1844.36: Left ilium fragment.

STGCM 1844.37: Left ischium.

STGCM 1944.38: Right ischium.

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Species: ? mogrebiensis de LAPPARENT, 1955
Etymology:

Holotype:

Locality: Tamguert, N'Tairt, 2 km north of El Mers, Morocco.

Horizon: Guettioua Sandstones.

Biostratigraphy:

Age: Late Bathonian Stage, Middle Dogger Epoch, Early Jurassic.

Material: Fragmentary skeleton.

Referred material:

Locality: Taghrout, 3 km W of El Mers, Morocco.

Horizon:

Biostratigraphy:

Age: Bathonian Stage, Middle Dogger Epoch, Early Jurassic.

Material:

Number: Not given: Scapula, humerus, femur, ischium, ilium and 8 dorsal vertebrae.

 


Locality: 3 km SE of El Mers, Morocco.

Horizon:

Biostratigraphy:

Age: Bathonian Stage, Middle Dogger Epoch, Early Jurassic.

Material:

Number: Not given: Fragmentary femur, 35 vertebrae, and fragmentary ribs.

 

 

Locality: El Mers Region, Morocco.

Horizon:

Biostratigraphy:

Age: Bathonian Stage, Middle Dogger Epoch, Early Jurassic.

Material:

Number: Not given: Fragmentary dorsal vertebrae, fragmentary scapula, fragmentary coracoids, distal humerus, metacarpals, fragment of ilium, 2 proximal tibiae, 2 distal metatarsals.