Genus: Iberomesornis SANZ & BONAPARTE, 1992
Etymology: Latin, Iberia, name for the Iberian peninsula, Greek, mesos, “middle, intermediate” and Greek ornis for bird. ”Iberian intermediate bird”
= Iberomesornis CHIAPPE & CALVO, 1989 (nomen nudum)

Species: romerali SANZ & BONAPARTE, 1992
Etymology: Named for its discoverer, Amando Romeral.
= Iberomesornis romerali CHIAPPE & CALVO, 1989 (nomen nudum)

Holotype: LH022R

Locality: Las Hoyas fossil site, La Cierva Township, 20 km east of Cuenca, in the Castellan Branch of the Iberian Range, Cuenca Province, Spain.

Horizon: Calizas de La Huerguina Formation.


Age: Upper Hauterivian Stage, Late Neocomian subepoch-Lower Barremian Stage, Early Gallic subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material: Almost complete, articulated individual, preserved in left lateral view, without skull, anterior cervicals, both carpometacarpal and all carpal digits.

Referred material:

Number: Not given: A feather.