Small coelurosaurians are the most diverse dinosaurs , including fellow dromaeosaurid Velociraptor , troodontids Byronosaurus and Saurornithoides , oviraptorids Citipati , Khaan , and Oviraptor , and alvarezsaurs Mononykus and Shuvuuia ; other dinosaurs present included ceratopsian Protoceratops and ankylosaurid Pinacosaurus .
Small coelurosaurians are the most diverse dinosaurs , including fellow dromaeosaurid Velociraptor , troodonts Byronosaurus and Saurornithoides , oviraptors Citipati , Khaan , and Oviraptor , and alvarezsaurs Mononykus and Shuvuuia ; other dinosaurs present included the ceratopsian Protoceratops and the ankylosaur Pinacosaurus .