The Arcillas de Morella Formation is a geological formation in Spain whose strata date back to the Barremian stage of the Early Cretaceous.

[1] Dinosaur remains are among the fossils that have been recovered from the formation.

[2] The formation was formally named and defined by Canérot and colleagues in 1982.

[3] The formation predominantly consists of red clays and continental sandstones, with some marine intercalations.

[4]