Holotype: Field number VI 9901

Locality: Cape Lamb, Vega Island, Northeast Peninsula, West Antarctica, Antarctica.

Horizon: Lopez de Bertodano Formation.

Biostratigraphy:

Age: Lower Maastrichtian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: 2 cervical, 2 thoracic vertebrae, sternal keel, articulated right coracoid and scapula, sternal portion of left coracoid, complete right humerus, partial left humerus, proximal right ulna, proximal left ulna and radius, proximal right carpometacrapus, proximal left carpometacarpus, distal left carpometacarpus, synsacrum, right femur, partial left femur, proximal right tibiotarsus, right and left distal tibiotarsus articulated ends and proximal right tarsometarsus.