Genus: Ilerdopteryx LACASA, 1985
Etymology: In reference to Ilerda, and Greek, pteryx, “wing.”

Species: viai LACASA, 1985
Etymology: Greek, viai, "highroad."

Holotype: Institute d’Estudis Ilerdencs, Nr Lp 715/EI

Locality: Montasch Mountain, Lleida Province, Spain.

Horizon:

Biostratigraphy:

Age: Upper Berriasian-Lower Valanginian Stage, Lower-Middle Neocomian Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.

Material: Feather.