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 ().
Maraapunisaurus
In 1994, using the related "Diplodocus" as a reference, Gregory S. Paul estimated a femur length of for "A. fragillimus". The 2006 re-evaluation of "A. fragillimus" by Carpenter also used "Diplodocus" as a scale guide, finding a femur height of . Carpenter went on to estimate the complete size of "M. fragillimus", though he cautioned that relative proportions in diplodocids could vary from species to species. Assuming the same proportions as the well-known "Diplodocus", Carpenter presented an estimated total length of , which he noted fell within the range presented by Paul in 1994 (). Carpenter pointed out that even the lowest length estimates for "A. fragillimus" were higher than those for other giant sauropods, such as the diplodocid "Supersaurus" (), the brachiosaurid "Sauroposeidon" (), and the titanosaur "Argentinosaurus" (). Carpenter presented more speculative, specific proportions for "M. fragillimus" (again, based on a scaled-up "Diplodocus"), including a neck length of , a body length of , and a tail length of . He estimated the total forelimb height at and hind limb height at , and the overall height (at the highest point on the back) at . By comparison, the blue whale reaches in length.