Genus: Gideonmantellia RUIZ-OMENACA, CANUDO, CUENCA-BECOS, CRUZADO-CABALLERO, GASCA, & MORENO-AZANZA, 2012
Etymology: In honor of Gideon Algernon Mantell, the first author to describe and to figure "hypsilophodontid" remains, in 1849, as those of a very young Iguanodon (subsequently regared as the paratype of Hypsilophodon foxii Huxley, 1869; Galton, 1974)

Species: amosanjuanae RUIZ-OMENACA, CANUDO, CUENCA-BECOS, CRUZADO-CABALLERO, GASCA, & MORENO-AZANZA, 2012
Etymology: Dedicated to Olga Maria Amo Sanjuan, a fellow of the Department of Paleontology at the University of Zaragoza who was doing her thesis on eggshell fragments of vertebrates from the Lower Cretaceous of Galve whe she died prematurely in October 2002.

Holotype: MPG-PBCH

Localtiy: Poyales, Galve, Galve subasin, Maestrazgo Basin, Iberian Range, Teruel Province, Northeastern Spain.

Horizon: Upper part of the Camarillas Formation.

Biostratigraphy:

Age: Barremian Stage, Lower Gallic Subepoch, Middle Early Cretaceous Epoch, Early Cretaceous.

Material: A partial skeleton; 9 dorsal, 3 sacral and 21 caudal vertebrae, fragments of dorsal ribs, 6 chevrons, fragments of ossified tendons, left ilium, left prepubic process, fragments of left ischium and post pubis, both femora, tibiae, and fibulae, right astragalus, both calcanei, adn 5 metatarsals and 19 phalanges from both feet.