science · 30 November 1921 · 103 years ago
First of four successive American Museum of Natural History expeditions to Mongolia under Roy Chapman Andrews which will discover fossils of Indricotherium (a gigantic hornless rhinoceros then named "Baluchitherium"), Protoceratops, a nest of Protoceratops eggs (found in 1995 to be from Oviraptor), Pinacosaurus, Saurornithoides, Oviraptor and Velociraptor, none of which were known before.