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Brachiosaurus is estimated to have been between 18 and 22 meters (59 and 72 ft) long; body mass estimates of the subadult holotype specimen range from 28.3 to 46.9 metric tons (31.2 to 51.7 short tons). It had a disproportionately long neck, small skull, and large overall size, all of which are typical for sauropods.
FMNH P 25107 (Holotype): This is the most complete adult Brachiosaurus specimen known. Dorsal vertebrae 6-12 are preserved, in addition to a sacrum, two caudals, a rib, a coracoid, a humerus, and a femur. USNM 21903 ("Potter Creek Humerus"): Scaled after the holotype, this represents the largest known Brachiosaurus specimen. This humerus has ...
English: Reconstruction of USNM 5730, the "Felch Quarry Skull," which has been attributed to Brachiosaurus sp. Known material is shown in white, unknown material in gray. Unknown regions have been restored following the more complete skulls of Giraffatitan and Abydosaurus. Key: Bones an = angular; ar = articular; bo = basioccipital; d = dentary
USNM 5730 ("Felch Quarry Skull"): This is the skull that Marsh used for his Brontosaurus restoration. It is partially complete and crushed. A 99 cm cervical was also present at the dig site but was destroyed during excavation. Shown in lime. BYU 12866 and 12867 ("BYU Cervicals"): C5 and C10, respectively.
Brachiosaurus humerus bone. In 1903, Elmer Samuel Riggs described and named Brachiosaurus. In 1904, he created a new sauropod family, the Brachiosauridae. [9] [1] He published a complete description of the phenotype after examining the humerus, femur, coracoid, and sacrum of the Brachiosaurus holotype that had been prepared at the Field ...
On the perilous Jurassic Period landscape of western North America, it was good to be big. Paleontologists have conducted a study scrutinizing bite marks left by meat-eating dinosaurs on the bones ...
A former Playboy model killed herself and her 7-year-old son after jumping from a hotel in Midtown New York City on Friday morning. The New York Post reports that 47-year-old Stephanie Adams ...
Traditionally, the distinctive high-crested skull was seen as a characteristic of the genus Brachiosaurus, to which Giraffatitan brancai was originally referred; however, it is possible that Brachiosaurus altithorax did not show this feature, since within the traditional Brachiosaurus material it is known only from Tanzanian specimens now ...