Species: purbeckensis EVANS & McGOWAN, 2002
Etymology: In reference to the Purbeck limestone Group.

Holotype: DORCM GS159

Locality: Sunnydown Farm Quarry near Langton Matravers, NGR SY 9822 7880, Swanage, Dorset County, England, southern United Kingdom.

Horizon: Cherty Freshwater Member, Lulworth Formation, Purbeck Limestone Group.

Biostratigraphy:

Age: Early Cretaceous.

Material: A subadult right partial ilium.

Referred material:

DORCM GS162: A right parital ilium.

DORCM GS180: A left partial juvenile ilium.

DORCM GS161: An angulosplenial.

DORCM GS171-172, 176, 178, 181-182: Partial maxillae.

DORCM GS 183: A partial premaxilla.

DORCM GS167: A partial atlas centrum.

DORCM GS163-174: Presacral vertebral centra.

DORCM GS173, 177: Fragments of neural arch.

DORCM GS166: A sacral vertebral centrum.

DORCM GS179: A partial urostyle.

DORCM GS160, 165, 168, 175: Distal humeral condyles.

DORCM GS 169: A partial radio-ulna.

DORCM GS164: A partial puboischium.

DORCM GS170: A partial tibio-fibula.