Updated
Updated · VICE · Jun 13
China Fossil Find Reveals 4-Foot Microraptor Jian changmaensis, One of the Largest on Record
Updated
Updated · VICE · Jun 13

China Fossil Find Reveals 4-Foot Microraptor Jian changmaensis, One of the Largest on Record

3 articles · Updated · VICE · Jun 13

Summary

  • CT scans of a left shoulder and arm fossil from northwestern China identified Jian changmaensis, a new non-avian dinosaur from the Lower Cretaceous Changma Basin.
  • The upper arm bone measured just over 4 inches, pointing to a wingspan of about 4 feet and making Jian one of the largest microraptorines yet found.
  • Jian belonged to the Velociraptor-related dromaeosaurs and likely glided rather than flew, using feathered forelimbs and hind limbs to swoop on prey.
  • The Changma Basin site was discovered by accident in 1981 during a fish hunt and has since yielded more than 100 bird skeletons, some with preserved feathers and skin.

Insights

Is this feathered predator a true dinosaur, or a bird that lost flight, challenging a key theory of evolution?
How did a four-winged gliding dinosaur manage to hunt and capture agile, flying birds?