Genus: Tricleidus ANDREWS, 1909
Etymology: Greek, tri-, “three”, Greek, kleid- (kleis), “key, clavicle”: Triple clavicle.

Species: seeleyi ANDREWS, 1909
Etymology:

Holotype: BMNH R 3539

Locality: From the pit worked by Messrs Hicks and Gardner immediately across the lane from Woodstone Lodge at Pletton, near Peterborough, Cambridgeshire County, England, Southern United Kingdom.

Horizon: Oxford Clay.

Biostratigraphy:

Age: Callovian Stage, Upper Dogger Epoch, Late Jurassic.

Material: Disarticuated bones of the skull, mandible, cervical, pectoral, 5 dorsal and 2 caudal vertebrae, numerous dorsal and ventral ribs, shoulder-girdle, including coracoids, scapulae, clavicles, and interclavicle, fore paddles, incomplete, 1 pubis, hind paddles.

1) Right half of mandible; 2) Lower tooth; 3) Clavicular arch; 4) Left femur and proximal part of paddle; 5) Dorsal vertebra; 6) Dorsal vertebra; 8): Pectorial vertebra; 8) Series of cervical vertebrae (ANDREWS, 1913).

Referred material:

Locality: Peterborough, Cambridgeshire County, England, Southern United Kingdom.

Horizon: Oxford Clay.

Biostratigraphy:

Age: Callovian Stage, Upper Dogger Epoch, Late Jurassic.

Material:

NMW 19.96.G7: The pectoral girdle and humerus.

HMG V1800: Right humerus.

 

BARDET, 1993

Locality: Quarry of Argences, Calvados Department, Normandy, France.

Horizon:

Biostratigraphy:

Age: Callovian Stage, Upper Dogger Epoch, Middle Jurassic.

Material:

Coll. R. Brun, Museum of LE Havre, MHNH 1003 & 1004: Right humerus and interclavicle.