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 ().
Tyrannosauridae
The tyrannosaurids were all large animals, with all species capable of weighing at least 1 metric ton. A single specimen of "Alioramus" of an individual estimated at between long has been discovered, although it is considered by some experts to be a juvenile. "Albertosaurus", "Gorgosaurus" and "Daspletosaurus" all measured between long, while "Tarbosaurus" reached lengths of from snout to tail. The massive "Tyrannosaurus" reached in the largest specimen, FMNH PR2081.