Université de Fribourg

An abelisauroid (Dinosauria: Theropoda) from the early Jurassic of the high atlas mountains, Morocco, and the radiation of Ceratosaurs

Allain, Ronan ; Tykoski, Ronald ; Aquesbi, Najat ; Jalil, Nour-Eddine ; Monbaron, Michel ; Russell, Dale ; Taquet, Philippe

In: Journal of Vertebrate Paleontology, 2007, vol. 27, no. 3, p. 610–624

The fossil record of abelisauroid carnivorous dinosaurs was previously restricted to Cretaceous sediments of Gondwana and probably Europe. The discovery of an incomplete specimen of a new basal abelisauroid, Berberosaurus liassicus, gen. et sp. nov., is reported from the late Early Jurassic of Moroccan High Atlas Mountains. Phylogenetic analysis recovers Ceratosauroidea and Coelophysoidea as...

Université de Fribourg

Stratigraphie et paléoenvironnement des dépôts volcano-détritiques à dinosauriens du Jurassique inférieur de Toundoute (Province de Ouarzazate, Haut-Atlas – Maroc)

Montenat, Christian ; Monbaron, Michel ; Allain, Ronan ; Aquesbi, Najat ; Dejax, Jean ; Hernandez, Jean ; Russell, Dale ; Taquet, Philippe

In: Eclogae Geologicae Helvetiae, 2006, vol. 98, no. 2, p. 261-270

The Early Jurassic dinosaur site of Toundoute which yielded the basal sauropod Tazoudasaurus naimi is examined in the light of its stratigraphic, sedimentological and palaeoenvironmental context. A thin succession of Early Liassic marine carbonates (probably Hettangian-Sinemurian in age) is continuously overlain by continental beds with dinosaurs. These latter are assumed to be of Middle to Late...

Université de Fribourg

A basal sauropod dinosaur from the Early Jurassic of Morocco

Allain, Ronan ; Aquesbi, Najat ; Dejax, Jean ; Meyer, Christian ; Monbaron, Michel ; Montenat, Christian ; Richir, Philippe ; Rochdy, Mohammed ; Russell, Dale ; Taquet, Philippe

In: Comptes Rendus Palevol, 2004, vol. 3(3), p. 199

Continental strata of Early Jurassic age are seldom exposed, and little is known of the history of sauropod dinosaurs prior to the Middle Jurassic radiation of neosauropods. Well-preserved skeletons and skulls have not been recovered from strata older than the Middle Jurassic. Here we report, in the Early Jurassic of the Moroccan High Atlas, the discovery of the skeleton, including cranial...