BARRETT, CLARKE, BRINKMAN, CHAPMAN & ENSON, 2002, BARRETT & CLARKE, 2000

Locality: Durlston Bay, Dorset County, England, Southern United Kingdom.

Horizon: Purbeck Limestone Formation.

Biostratigraphy:

Age: Berriasian Stage, Lower Neocomian Subepoch, Lowermost Early Cretaceous Epoch, Early Cretaceous.

Material:

BMNH 48247, R.16310-11: Morph 1 granicone osteoderm.

BMNH R.16312: Morph 2 granicone osteoderm.

Note: My belong to either Helochelydra (= Tretosternon) anglica or ‘Tretosternon’ bakewelli

Note: BARRETT & CLARKE, 2000 referred these to HELODERMATIDAE.