Genus: Montsechosuchus BUSCALIONI & SANZ, 1990
Etymology: In reference to "Montsec,", Sierra del Monsech, Lerida Province, Spain, from the Lower Cretaceous outcrops of the Montsec Mountain and Greek, souchos, "crocodile."
= Montsechosuchus BENTON & CLAKR, 1988 (nomen nudum)

Species: depereti (VIDAL, 1915) BUSCALIONI & SANZ, 1990
Etymology: In honor of Charles Deperet.
= Alligatorellus depereti VIDAL, 1915
= Montsechosuchus depereti BENTON & CLAKR, 1988 (nomen nudum)

Holotype: MGB-512

Locality:  Sierra del Monsech, Lerida Province, Spain.

Horizon: La Pedrera de Rubies Formation.

Biostratigraphy:

Age: Upper Berriasian-Lower Valanginian Stage, Lower-Middle Neocomian Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.

Material: Skull and skeleton.

Counterpart: MGB-597