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Since Apatosaurus was the earlier name, Brontosaurus should be considered a junior synonym of Apatosaurus. Because of this, Riggs recombined Brontosaurus excelsus as Apatosaurus excelsus . Based on comparisons with other species proposed to belong to Apatosaurus , Riggs also determined that the Field Columbian Museum specimen was likely most ...
Brontosaurus differs from Apatosaurus in that the base of the posterior dorsal vertebrae's neural spines are longer than they are wide. The cervicals of species within Brontosaurus also vary, such as the lack of tubercules on the neural spines of B. excelsus and the lateral expansion of unbifurcated neural spines in B. parvus.
Apatosaurus and Brontosaurus may have been more solitary animals than other Morrison Formation dinosaurs. [115] Both genera existed for a long interval, and were found in most levels of the Morrison. B. excelsus, A. ajax, and A. louisae fossils have been reported from only the Brushy Basin Member, dating to the late Kimmeridgian age, about 151 ...
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 ...
The museum's Great Hall is dominated by the first fossil skeleton of Brontosaurus that he discovered, which was reclassified as Apatosaurus for a time. However, an extensive study published in 2015 concluded that Brontosaurus was a valid genus of sauropod distinct from Apatosaurus.
Old One, voiced by Carol Bruce (IV) and Jessica Walter (TV series), is an old female Apatosaurus who is the matriarch of the tribe of migrating longnecks, which includes Ali, who first appeared in The Land Before Time IV: Journey Through the Mists. She is old and wise and bears a prominent scar (or perhaps just advanced age creases) on the left ...
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Diplodocoidea is a superfamily of sauropod dinosaurs, which included some of the longest animals of all time, including slender giants like Supersaurus, Diplodocus, Apatosaurus, and Amphicoelias. Most had very long necks and long, whip-like tails; however, one family (the dicraeosaurids ) are the only known sauropods to have re-evolved a short ...