the Marnes Rouges Inférieures Formation. More specifically, it is known from the Bellevue layer, which has produced many vertebrate fossils. Even though it produced many vertebrates, the formation only has a few elements of plants and invertebrates. The vertebrates consist of numerous remains of Ampelosaurus, scales of Lepisosteus, shell fragments of an indeterminate turtle, cranial fragments and teeth of a crocodile, isolated theropod teeth, classified as Dromaeosauridae indet., an indeterminate ankylosaur, and a dentary and many postcranial elements of Rhabdodon priscus. The bird Gargantuavis philoinos, and dinosaur eggs have also been recovered. Another formation A. atacis is known from is Gres de Saint-Chinian. Along with Ampelosaurus, Rhabdodon priscus, Rhabdodon septimanicus, dinosaur eggs, a Nodosauridae indet. (previously known as Rhodanosaurus lugdunensis), "Megalosaurus" pannoniensis, Variraptor mechinorum, an Avialae indet., an Enantiornithes indet., and a possible Abelisauridae indet. are known from this formation. A. atacis is one of few vertebrates known from the Gres de Labarre Formation. The only other fossils from the formation belong to Rhabdodon priscus and a Nodosauridae indet. Villalba de la Sierra Formation The A. sp. is from the latest Cretaceous aged Lo Hueco region in the Villalba de la Sierra Formation. A study shows that the area around Lo Hueco dates to the late Campanian and early Maastrichtian, although a more recent study revised the later date to the latest Maastrichtian. The study showed that Lo Hueco was near the coast of the Tethys Sea, a large seaway through southern Europe and northern Africa. The area directly on the coast was shown to be a brackish-freshwater aquatic environment, with a muddy flood-plain beside it. Lo Hueco was found to be inside the flood-plain. The flood plain was found to have distributary channels of sand and terrigenous material. About 8500 different marcoremains have been found in Lo Hueco. Sauropods make up the largest amount of the remains with many articulated individuals, caudal vertebrae and teeth. The caudal vertebrae have been identified as being from a titanosaur closely related to Lirainsaurus, but with some differences. The teeth, were assigned to Ampelosaurus atacis. Apart from sauropods, the Villalba de la Sierra Formation has a good representation of carbonized plants, mostly known from branches and leaves, and invertebrates, mostly bivalves and gastropods. Fishes from the formation include lepisosteid, which have plenty of material, and unidentified actinopterygians and teleosteans. Turtle fossils are very common, even more common than fishes. Of all this material,