Species: leedsi LYDEKKER, 1893
Etymology: In honor of Alfred Nicholson Leeds a quarry owner and amateur palaeontologist.

Holotype: BMNH R2682

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

Horizon: Lower Oxford Clay.

Biostratigraphy: Probably Jason Zone.

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

Material: Incomplete left mandible with replacement teeth.

Referred material:

Locality: St. Ives, Cambridgeshire, England.

Horizon: Lower Oxford.

Biostratigraphy:

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

Material:

SMC J.46884: A dermal scute.