= cf. Muzquizopteryx sp FREY, ELGIN, STINNESBECK, PADILLA-GUTIERREZ, IFRIM, GIERSCH, GONZALEZ-GONZALEZ, 2012

Locality: El Rosario Quarry or La Carranza Quarry, Muzquiz County, Coahuila State, Mexico.

Horizon: Lower part of the Yellow Member, El Rosario section, Austin Group.

Biostratigraphy:

Age: Late Turonian Stage, Uppermost Gallic Subepoch, Lower Gulf Epoch, Late Cretaceous.

Material:

MUDE CPC-494: Humerus, fragmentary radius and ulna, metacarpal IV, fragmentary wing phalax 1, pteroid, and femur/tibia fragments (?).