New Four-Winged Dinosaur Discovery Offers Clues About How Flight Evolved

Scientists have identified a new species of feathered dinosaur from China that had wing-like structures on both its front and hind limbs, offering a fresh perspective on how flight may have evolved in dinosaurs.

The species, named Norellraptor barsboldi, lived between 120 and 125 million years ago during the Early Cretaceous period. Its exceptionally preserved fossil was found in the Jiufotang Formation in Liaoning, northeastern China.

A Small Dinosaur With Four Wing-Like Limbs

The newly identified dinosaur was relatively small. The studied specimen measured about 57 centimeters long, with approximately 32 centimeters belonging to its long tail.

It belonged to the microraptorine group, a collection of small feathered theropod dinosaurs related to the evolutionary history of birds.

Its most striking feature was the presence of elongated feathered limbs at both the front and rear of its body. These structures may have helped the animal glide or fly through the forests that covered the region millions of years ago.

Did Flight Evolve More Than Once?

The researchers’ analysis suggests that flight-related structures in Norellraptor barsboldi developed in a different sequence from those seen in modern birds.

Based on anatomical comparisons and statistical analysis, the researchers propose that similar flight adaptations may have evolved independently in different dinosaur groups.

However, scientists emphasize that the question remains debated. The fossil provides important anatomical evidence, but it cannot by itself establish with certainty that flight evolved completely independently in different lineages.

A Dinosaur Named to Honor Two Paleontologists

The new species also carries a personal tribute. Its name honors two influential paleontologists who died in 2025: American paleontologist Mark Norell and Mongolian paleontologist Rinchen Barsbold.

Both scientists made major contributions to the understanding of dinosaurs and the evolutionary relationship between dinosaurs and birds.

By naming the new dinosaur after them, the researchers have connected a modern fossil discovery with the work of two scientists who helped transform the study of dinosaur evolution.

Another Piece of the Bird Evolution Puzzle

The discovery does not provide a final answer to how powered flight first appeared, but it adds another important example of the remarkable diversity of feathered dinosaurs.

The exceptionally preserved fossil from China allows researchers to examine details of the animal’s body plan that are rarely available in dinosaur fossils, giving scientists another opportunity to understand the evolutionary experiments that took place long before modern birds appeared.

Sources

• Nature Communications — research on Norellraptor barsboldi — September 29, 2026.
• Discover Wildlife — “Bizarre four-winged dinosaur discovered in China” — September 29, 2026.
• El País — “Una nueva especie de dinosaurio plumífero sugiere que distintas especies conquistaron el vuelo por separado” — September 29, 2026.