Species: estesi EVANS, 1994
Etymology: For the late Dr. Richard Estes, in recognition of his work on early lizards and their relationships.

Holotype: NHMUK (old BMNH) 48388

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

Horizon: Purbeck Limestone Formation.

Biostratigraphy:

Age: Tithonian Stage, Upper Malm Epoch, Late Jurassic or Berriasian Stage, Lowermost Neocomian Subepoch, Lowermost Early Cretaceous Epoch, Early Cretaceous.

Material: A small block bearing an association of skull bones.
Note: The specimen was originally part of the Beckles collection. The block bears parts of the skull of a small lizard including: the left parietal in ventral view (right in impression), a complete left maxilla in medial aspect, a right pterygoid in palatal aspect, a left palatine, traces of left squamosal, other elements are too fragmentary for identification. There are isolated teeth and bone fragments near the pteryogid.

Referred material:

= aff. Parviraptor estesi

Locality: Swanage, Dorset County, England, Southern United Kingdom.

Horizon: Purbeck Limestone Formation.

Biostratigraphy:

Age: Tithonian Stage, Upper Malm Epoch, Late Jurassic or Berriasian Stage, Lowermost Neocomian Subepoch, Lowermost Early Cretaceous Epoch, Early Cretaceous.

Material:

NHMUK (old BMNH) R8511: A small slab bearing an association of skull bones (right frontal, left parietal, left postfrontal or postorbitofrontal, left palatine), ribs and vertebrae (cervical and dorsal).