The brachiosaurus had a very long neck, a small head and a short tail, compared to other sauropods.
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Brachiosaurus /ˌbrækiəˈsɔrəs/ is a genus of sauropod dinosaur from the Jurassic Morrison Formation of North America. It was first described by Elmer S. Riggs in 1903 from fossils found in the Grand River Canyon (now Colorado River) of western Colorado, in the United States. Riggs named the dinosaur Brachiosaurus altithorax, declaring it "the largest known dinosaur". Brachiosaurus had a proportionally long neck, small skull, and large overall size, all of which are typical for sauropods. However, the proportions of Brachiosaurus are unlike most sauropods - the forelimbs were longer than the hindlimbs, which resulted in a steeply inclined trunk. Also, while …show more content…
In 1883, a sauropod skull was found near Garden Park, Colorado, at Felch Quarry 1, and was sent to Othniel Charles Marsh (of "Bone Wars" fame).[5] Marsh incorporated the skull into his skeletal restoration of "Brontosaurus" (now Apatosaurus).[5][20] It eventually became part of the collections of the National Museum of Natural History, as USNM 5730.[5] In the 1970s, when Jack McIntosh and David Berman were working on the issue of the true skull of Apatosaurus, they reevaluated the Garden Park skull as more similar to Camarasaurus.[21] It was described and recognized as a Brachiosaurus skull in 1998 by Kenneth Carpenter and Virginia Tidwell, intermediate in form between Camarasaurus and Giraffatitan brancai (then still considered to be B. brancai).[22] Because there are no overlapping parts between this skull and FMNH P 25107, it cannot be confidently assigned to a species,[5][22] so it is classified as Brachiosaurus