The sandstones, mudstones and conglomerates of the formation, that due to syn-sedimentary faulting varies greatly in thickness from 300 to 800 metres (980 to 2,620 ft), were deposited in fluvial, deltaic and lacustrine environments.

In a second extensional stage during the Late Jurassic to Early Cretaceous, the Atlantic and the Bay of Biscay opened, and the Iberian Peninsula rotated from left to right.

At this time, the sediments were marine or showed the influence of the sea, as shown in the deposits of the Higuerueles and Villar del Arzobispo Formations in the Galve Sub-basin.

[4] Camarillas Formation, in beds of similar age to the La Maca outcrop in the Galve area where the remains of an iguanodontid dinosaur have been found.

Several new species were described from the formation, among others the mammals Galveodon nannothus, Eobaatar hispanicus, Crusafontia cuencana, Lavocatia alfambrensis and Parendotherium herreroi, the turtle Galvechelone lopezmartinezae and the crocodyliform Bernissartia fagesii.