Sinornithosaurus

Quick Sinornithosaurus Facts

  • Lived in what is now known as China
  • Lived during the early Cretaceous period
  • As long as a yard stick
  • Weighed as much as a cat
  • Was a carnivore

About Sinornithosaurus

Sinornithosaurus is a dinosaur that was discovered by Xu Xing in 1999 in the Yixian Formation of China. It is a dinosaur that lived during the early Cretaceous period – or about 124 million years ago. The name of this dinosaur is a combination of Chinese and Greek and can be roughly translated to mean “Chinese Bird-Lizard.”

Although this dinosaurs name refers to it as a bird, Sinornithosaurus isn’t one. It is actually a therapod dinosaur that had feathers on it. Some fascinating Sinornithosaurus facts is that is one of 5 non-avian feathered dinosaurs to have been found by 1999 and most of them have been found in Asia.

Most of the feathers found on this dinosaur’s head were more like hairs than feathers. However, the ones on its arms and tail definitely looked like the feathers of a bird. There were also some feathers on its back that weren’t as short as the ones on its head but are shorter than the ones on its arms and tail.

If you take a close look at Sinornithosaurus pictures, then you’ll notice an animal that looks like a cross between a bird and a lizard. It was about 3 feet long and about a foot tall, which means that it probably would have come up to an adult male’s knees – if these dinosaurs were still around today. It weighed about 10 pounds – about as much as a gallon of paint.

It was initially thought to have been a venomous dinosaur – one that could secrete a poison by biting someone. They hypothesized this because this dinosaur had a dental structure that was very close to one of a snake. This hypothesis was even published in 2009. However, it has since been debunked. At the moment, there is just no proof it was venomous.

Currently, scientists are debating whether or not this dinosaur could glide. Some paleontologists firmly believe that Sinornithosaurus could have glided – much like some flying squirrels do today. However, some scientists say that it would’ve been much too heavy to have glided. That it would have simply fallen to the ground. Today, the issue is still up for debate.

Sinornithosaurus Pictures

Sinornithosaurus by Ben Jewer
Sinornithosaurus by Pedro Salas
Sinornithosaurus by Drakoslav
Sinornithosaurus by Scott Hartman
Sinornithosaurus by Emily Willoughby
Sinornithosaurus by Nobu Tamura
Sinornithosaurus by Blair