New Dinosaur Species Close to Birds Discovered in Southern Hemisphere

A fossil of a new species of deinonychosaur, a group of dinosaurs considered close to birds, has been discovered in Early Cretaceous strata in Argentina.
The discovered fossils included ribs, a femur, and toe bones, but because the second toe had a sickle claw used as a weapon, it is considered a member of the dromaeosaurid family.
This is the first time a member of the dromaeosaurid family has been found in the Southern Hemisphere.

Since both Archaeopteryx and feathered dinosaurs have so far been concentrated in the Northern Hemisphere, it was thought that "the origin and evolution of birds occurred in the Northern Hemisphere," but the discovery of fossils of the same species in the Southern Hemisphere has given reason to reconsider this idea.

Also, a feathered dinosaur was recently found in Middle to Late Jurassic strata in northern China, and it seems that the debate about "the origin and evolution of birds" is likely to heat up. There are still many areas in the Southern Hemisphere that have not been excavated or surveyed, and further discoveries are awaited.