Species: costai TELLUS ANTUNES & SIGOGNEAU-RUSSELL, 1991
Etymology: In honor of Carrington da Costa.
= cf. Goyocephale sp ANTUNES & de BROIN, 1988

Holotype: Centro de Estratirafia e Paleobiologia da Universidade Nova de Lisboa, TV 10

Locality: Taveiro Village of the District of Coimbra, Province of do Beira Litoral, Portugal.

Horizon: Taveiro Formation.

Biostratigraphy:

Age: Late Campanian or Early Maastrichtian State, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: Tooth.

Referred material:

TV 6, 7, 8, 9, 11, 13, 14, 15, 16: Teeth.