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Brontosaurus excelsus ' type specimen (YPM 1980) was one of the most complete sauropod skeletons known at the time, preserving many of the characteristic but fragile cervical vertebrae. [8] Marsh believed that Brontosaurus was a member of the Atlantosauridae , a clade of sauropod dinosaurs he named in 1877 that also included Atlantosaurus and ...
Brontosaurus excelsus ' type specimen (YPM 1980) was one of the most complete sauropod skeletons known at the time, preserving many of the characteristic but fragile cervical vertebrae. [5] A year later in 1880, another partial postcranial Brontosaurus skeleton was collected near Como Bluff by Reed, [20] [21] including well-preserved limb ...
2 dorsal vertebrae, femur, and a pubis. [61] Large diplodocids about 25 m (82 ft) in length. [62] Amphicoelias altus Apatosaurus louisae Ardetosaurus viator Brontosaurus excelsus Barosaurus lentus Diplodocus carnegii Diplodocus hallorum Galeamopus hayi Kaatedocus siberi Supersaurus: Apatosaurus [7] A. ajax [16] — Colorado, Brushy Basin member ...
The Brontosaurus and Brachiosaurus are perhaps the most famous of the sauropods, dinosaurs defined by their long necks, long tails, small heads and four pillar-like legs.
The world's most iconic dinosaur -- and the largest to ever roam the earth -- is finally getting some respect from science. We were all taught to identify the long-necked Brontosaurus through ...
Some features proposed to separate Brontosaurus from Apatosaurus include: posterior dorsal vertebrae with the centrum longer than wide; the scapula rear to the acromial edge and the distal blade being excavated; the acromial edge of the distal scapular blade bearing a rounded expansion; and the ratio of the proximodistal length to transverse ...
An abundance of sauropods has been found there, including Apatosaurus, Diplodocus, Barosaurus, Brachiosaurus, Camarasaurus, Brontosaurus and Amphicoelias. Three genera of stegosaurs, Alcovasaurus, Stegosaurus and Hesperosaurus, have been found there. Finally, ornithopods found in the Morrison include Camptosaurus, Dryosaurus, and Nanosaurus,
Neck reconstructions of Sigilmassasaurus (top) and Baryonyx. The validity of Sigilmassaurus, however, did not go unchallenged shortly after it was named.In 1996, Paul Sereno and colleagues described a Carcharodontosaurus skull (SGM-Din-1) from Morocco, as well as a neck vertebra (SGM-Din-3) which resembled that of "Spinosaurus B," which they therefore synonymized with Carcharodontosaurus. [11]