Piveteausaurus
Sign in to savePiveteausaurus (meaning "Jean Piveteau's lizard") is a genus of theropod dinosaur known from a partial skull discovered in the Middle Jurassic (164.7 to 161.2 million years ago) Marnes de Dives of Calvados, northern France. In 2012, Thomas Holtz gave a possible length of .
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Piveteausaurus (meaning "Jean Piveteau's lizard") is a genus of theropod dinosaur known from a partial skull discovered in the Middle Jurassic (164.7 to 161.2 million years ago) Marnes de Dives of Calvados, northern France. In 2012, Thomas Holtz gave a possible length of .
==History and description== thumb|left|Holotype The partial braincase that became the type specimen of Piveteausaurus was first described in 1923 by French paleontologist Jean Piveteau in illustrations and photographs of the specimen (MNHN 1920-7). The braincase is comparable in size to that of a large Allosaurus, and resembles that of another megalosauroid, Piatnitzkysaurus from Argentina. Piveteau grouped this partial skull with other specimens found earlier in that locality and described in 1808 by French naturalist Georges Cuvier. In 1861 English paleontologist Richard Owen assigned the fragments to the species Streptospondylus cuvieri, and Piveteau included the skull he found in the same species.