Information om | Engelska ordet BRACHIOSAURID

Exempel på hur man kan använda BRACHIOSAURID i en mening

• While initially described as a brachiosaurid closely related to Brachiosaurus and Giraffatitan, the discovery of additional remains in the Cloverly Formation of Wyoming suggested that it was in fact more closely related to the titanosaurs, in the group Somphospondyli.
• The quarry also produced specimens pertaining to four individuals of a brachiosaurid, an iguanodontian, a turtle, a pterosaur, and specimens of the nodosaurid Peloroplites.
• Naish and Martill (2001) suggested Eucamerotus was a dubious brachiosaurid, and did not find Blows' characters convincing.
• There were finally quick comparisons to the potential brachiosaurid Lusotitan, which has a different ilium and astragalus shape, and Cetiosaurus humerocristatus (named Duriatitan), which has a deltopectoral crest that is less prominent and extends across less of the humerus.
• However, the presence of a small medially directed thumb-claw print makes it likely the animal was a brachiosaur, since they have small thumb claws at ground level (as opposed to diplodocids and camarasaurids, whose thumb metacarpals are short and hold their thumb claws off the ground), and the narrow-gauge stance also fits with a brachiosaur body shape - in the Early Cretaceous, the dominant sauropods were wide-bodied titanosaurs, and deep-bodied brachiosaurs which had more narrowly spaced legs - therefore the narrow gauge of the Breviparopus prints favors a brachiosaurid diagnosis (this seems to be corroborated by the sacrum of Brachiosaurus nougaredi, which is unusually narrow for its length even by brachiosaur standards).
• Diplodocid and brachiosaurid members of the group composed the greater portion of neosauropods during the Jurassic, but they began to be replaced by titanosaurs in most regions through the Cretaceous period.
• Fossi vertebrates include dinosaur bone fragments of ceratopsians, a possible primitive tyrannosaurid, nodosaurid ankylosaurs, a brachiosaurid sauropod, the bothremyid turtle Paiutemys.
• Indeterminate avialan, euornithopod, and sauropod remains that were once misidentified as brachiosaurid are present in New South Wales, Australia.

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