Sinornithosaurus

Noun

Sinornithosaurus (plural Sinornithosauruses)

1. A small, carnivorous, dromaeosaurid dinosaur which belongs to the family Dromaeosauridae of subfamily Microraptorinae.
   • A large promaxillary fenestra is also seen in other Liaoning dromaeosaurids such as Sinornithosaurus 21 and Tianyuraptor 15, but it is much smaller in most other dromaeosaurids, such as Velociraptor 26 and Tsaagan 27 .2015 July 16, Junchang Lü, Stephen Louis Brusatte, “A large, short-armed, winged dromaeosaurid (Dinosauria: Theropoda) from the Early Cretaceous of China and its implications for feather evolution”...

   Synonyms:

   dromaeosaurid

2. A genus of feathered dromaeosaurid dinosaurs from the early Cretaceous which originates in what is now China.
   • Sinornithosaurus was an early member of the dromaeosaur family. [...] Sinornithosaurus means "Chinese bird lizard," but this species wasn't a true bird, since it was probably too heavy to fly, although like other dromaeosaurs it might have evolved from a flying ancestor.2013, DK: Margaret Parrish, Caroline Bingham, and Ben Morgan, Dinosaurs: A Visual Encyclopedia, page 202
   • We believe the first lice lived on feathered dinosaurs about 125 million years ago. [Image] Sinornithosaurus (Cretaceous Period)2023, translated in 2025, Berta Páramo and translated by Marc Correa Haro, Lice: How to Survive on Humans, page 190