Brontosaurus is a genus of herbivorous sauropod dinosaur that lived in present-day United States during the Late Jurassic period. It was described by American paleontologist Othniel Charles Marsh in 1
An 1896 diagram of the B. excelsus holotype skeleton by O.C. Marsh. The head is based on material now assigned to Brachiosaurus sp.
Obsolete mount of an apatosaurine referred to B. excelsus (specimen AMNH 460) with sculpted skull, completed in 1905, American Museum of Natural History
Infographic explaining the history of Brontosaurus and Apatosaurus according to Tschopp et al. 2015
Dryosaurus is an extinct genus of herbivorous ornithopod dinosaur that lived in the Late Jurassic period. It was an iguanodont. Fossils have been found in the western United States and were first disc
Cast of the D. elderae holotype skull
D. elderae holotype skeleton (front) with Ceratosaurus, Carnegie Museum