These include the ornithomimosaurs and the oviraptorosaurs.

这些包括似鸟龙和偷蛋龙。

Paleontologists believe it belongs to a toothless theropod dinosaur, or oviraptorosaur, dating back 72 to 66 million years, within the Cretaceous Period.

古生物学家认为它属于一种无牙兽脚类恐龙，或称卵龙，可以追溯到7200万至6600万年的白垩纪时期。