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 ().
Ankylopollexia
Ankylopollexians varied greatly in size over the course of their evolution. An early genus, "Camptosaurus" is thought to have reached a maximum size of in length. Gregory S. Paul contends that "Camptosaurus" was smaller, no more than in length and half a tonne in weight. The largest known ankylopollexian, dating to the late Campanian age (around 70 million years ago), belonged to the hadrosaurid family, and is named "Shantungosaurus". It was around to in length and weighed, for the largest individuals, up to . An Early Cretaceous genus from England, "Mantellisaurus", weighed about .