Gresslyosaurus

Gresslyosaurus (meaning "Amanz Gressly's lizard") is a genus of plateosaurian sauropodomorph dinosaur that lived during the Late Triassic period, around 214 to 204 million years ago, in France, Germany and Switzerland. Discovery and naming The holotype of G. ingens, NMB BM 1, 10, 24, 53, 530-1, 1521, 1572-74, 1576-78, 1582, 1584-85, 1591, consists of postcranial remains discovered in the Late Triassic (late Norian-Rhaetian) Trossingen Formation or Knollenmergel Formation of northern Switzerland around 1840 by Amanz Gressly, with more of the holotype being found between 1915 and 1942 by an unknown collector. G. ingens was named and described by Rütimeyer (1857). The most complete remains of G. plieningeri were collected from the Marnes de Châlins Formation of France between 1982 and 1994, and the holotype, SMNS 80664, a set of postcrania, was collected from the Trossingen Formation of Germany by Pleininger in 1847. G. plieningeri was named and described by Huene (1905). The holotype of G. robustus, UT (GPIT) B, a set of postcrania, was collected from the Trossingen Formation of Germany by Quenstedt in 1879. G. robustus was named and described by Huene (1905).