The Gres a Avicula contorta is a geological formation in France. It dates back to the late Norian.Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Triassic, Europe)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 521–525. .

Vertebrate paleofauna Rhomphaiodon nicolensis (type locality) Dinosaurs of the Gres a Avicula contorta Taxa Presence Notes Images PlateosauriaIndeterminate TheropodaIndeterminate remains.

See also List of dinosaur-bearing rock formations

References