Genus: Muzquizopteryx FREY, BUCKY, STINNESBECK, GONZALEZ-GONZALEZ, & STEFANO,
Etymology: In reference to Muzquiz, a town in Coahuila State, in northeast Mexico, 300 km north of Salitillo, in the vicinity the specimen was found, and Greek, pteryx, “wing”; Muzquiz wing.
= Genus: Nova FREY, 2003 (Similar to Cycnorhamphus (Cycnorhynchus sic) suevicus)
Species: coahuilensis FREY, BUCKY, STINNESBECK, GONZALEZ-GONZALEZ, & STEFANO,
Etymology: In reference to the state of Coahuila, in Mexico, where the specimen was found.
Holotype: UNAM IGM 8621
Locality: El Rosario Quarry, Muzquiz County, Coahuila State, Mexico.
Horizon: Austin Group.
Age: Coniacian Stage, lowest Senonian subepoch, lower Gulf Epoch, Early Late Cretaceous.
Material: Nearly complete specimen missing only the distal elements of the
wing fingers and the rostral terminus of the cranium.
Note : Soft tissue around the radus and ulna complex and phosphatised muscle and tendon fibers are preserved.