Species: castilhoi PRICE, 1971
Etymology: In honor of Moacir Marques de Castilho who donated the chalk nodule he collected with the specimen in it.

Holotype: DGM-DNPM No. 529-R

Locality: Chapade do Araripe, Ceara State, Northeastern Brazil.

Horizon: Romualdo Member, Santana Formation, Araripe Group.

Biostratigraphy:

Age: Late Aptian or Early Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: Partial right wing preserved in one calcareous nodule (part and counterpart) consisting of the distal portion of ulna and radius, proximal carpal series (2 unfused elements), distal lateral carpal, pteroid, metacarpals I to IV, digit I (complete), one phalanx and the ungual of digit II, 2 phalanges of digit III proximal articulation of F1D4, and 2 incomplete wing phalanges.

Referred material:

Cast of this specimen are housed in the Bayerische Staatssammlung fur Palaontologie und historische Geologie (Munich) and Museu Nacional (MN4806-V, Rio de Janeiro).