9949 Brontosaurus
This minor planet was named after Brontosaurus, a gigantic quadruped sauropod dinosaurs, which walked on all four legs and lived in the Upper Jurassic. Adult individuals measured up to 20 meters and had a weight of up to 20 tons. Many Fossils have been found in the United States. Brontosaurus is one of the best-known dinosaurs. The official naming citation was published by the Minor Planet Center on 20 November 2002 ().
Gorgosaurus
"Gorgosaurus" was smaller than "Tyrannosaurus" or "Tarbosaurus", closer in size to "Albertosaurus" and "Daspletosaurus". Adults reached from snout to tail. Paleontologists have estimated full-grown adults to weigh about , perhaps approaching . The largest known skull measures long, just slightly smaller than that of "Daspletosaurus". As in other tyrannosaurids, the skull was large compared to its body size, although chambers within the skull bones and large openings (fenestrae) between bones reduced its weight. "Albertosaurus" and "Gorgosaurus" share proportionally longer and lower skulls than "Daspletosaurus" and other tyrannosaurids. The end of the snout was blunt, and the nasal and parietal bones were fused along the midline of the skull, as in all other members of the family. The eye socket was circular rather than oval or keyhole-shaped as in other tyrannosaurid genera. A tall crest rose from the lacrimal bone in front of each eye, similar to "Albertosaurus" and "Daspletosaurus". Differences in the shape of bones surrounding the brain set "Gorgosaurus" apart from "Albertosaurus".