The dinosaur skeleton is one of only four known Ceratosaurus nasicornis skeletons and the only juvenile skeleton of the species, which resembles the Tyrannosaurus rex but is smaller.

A 54-pound meteorite from Mars sold for more than $5 million when it went up for auction on Wednesday at Sotheby's.

The meteorite was discovered in Niger in November 2023 and is 70% larger than the next biggest piece of Mars recovered on Earth.