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 ().
Barosaurus
"Barosaurus" was an enormous animal, with some adults measuring more than 26 meters (85 feet) in length and weighing more than 20 metric tons (22 short tons). There are some indications of even larger individuals, probably over 50 meters long and with a mass around 100 tonnes making it possibly the largest known dinosaur. "Barosaurus" was differently proportioned than its close relative "Diplodocus", with a longer neck and shorter tail, but was about the same length overall. It was longer than "Apatosaurus", but its skeleton was less robust.