Erika Posmosanu
Muzeul Tãrii Crisurilor, Oradea, Romania,
Abstract - The Cornet assemblage has a low faunal diversity in comparison with other European Wealden vertebrate associations. The abundance of ornithopod dinosaurs and the rarity of other taxa suggest that the Cornet area was selected by ornithopods for some necessary resource. Theropods might also have resided in the area. The vicinity of fresh water is attested by the presence of ostracods and gastropodes, as well as of charophytes. The presence of the aquatic birds also suggests the proximity of water resources. Pterosaurs attest the vicinity of the shore. Taphonomic data indicate an attritional assemblage which has been deposited over a long period of time. The presence of both adults and juveniles may be an indication of the social behavior of ornithopod dinosaurs.