Dorsetisaurus is a genus of extinct lizard, known from the Late Jurassic of North America, and the Late Jurassic-earliest Cretaceous of Europe. The genus was first reported from the Early Cretaceous (Berriasian) Lulworth Formation of the Purbeck Group of Durlston Bay, in Dorset. It has also been reported from the Late Jurassic aged Alcobaça Formation of Portugal, the Aptian-Albian Dzunbain Formation of Mongolia,Alifanov V. R. (2000) The fossil record of Cretaceous lizards from Mongolia, The Age of Dinosaurs in Russia and Mongolia, 368-389 and the Morrison Formation of Western North AmericaFoster, J. (2007). "Table 2.1: Fossil Vertebrates of the Morrison Formation." Jurassic West: The Dinosaurs of the Morrison Formation and Their World. Indiana University Press. pp. 58-59. present in stratigraphic zones 2, 4, and 5.Foster, J. (2007). "Enneabatrachus hechti" Jurassic West: The Dinosaurs of the Morrison Formation and Their World. Indiana University Press. p. 137. It is considered the oldest widely accepted member of Anguimorpha, based on the presence of 11 shared synapomorphies.
See also
Paleobiota of the Morrison Formation
References