New upper triassic dinosaur footprints from la 'Bordure cevenole' (La Grand-Combe, SE of France)

Two dinosaur footprints levels are discovered in the 'Gres superieurs et Ar gilites bariolees' Formation dated Late Triassic. These tracks form the Oto zoum/Grallator association, never sharply defined in Europe. From ichnologi cal comparisons with USA and South Africa, a norian age is inferred for the french levels bearing the footprints. Otozoum grandcombensis nov. ichnosp. names large tetradactyl hands and feet traces made by a bipedal Prosauropo da, sometimes quadrupedal. It differs from Plateosaurus, frequent in the eu ropean upper triassic, by a remarkable homopody. Grallator andeolensis nov. ichnosp. are II-IV; tridactyl feet traces, probably due to a Ceratosauria Coelophysidae. These two kind of dinosaurs lived together in a large flood plain with flora and in which numerous clay-dolomite alternatings were depo sited.