A Chicago fossil of Archaeopteryx uncovers unknown features, supporting theories of bird evolution from dinosaurs and ...

Significantly, the Chicago specimen is the first known Archaeopteryx fossil to preserve tertials — the flight feathers ...

In 1861, scientists discovered Archaeopteryx, a dinosaur with feathers, in 150-million-year-old limestones in Solnhofen, ...

Key to the first bird’s flight was likely a set of never-before-seen feathers, called tertials, found on the upper arm of the ...

This 150-million-year-old fossil is rewriting the story of how flight began.

Recently, a joint Chinese-American research team led by Dr. HU Han from the Institute of Vertebrate Paleontology and ...

Recently, a joint Chinese–American research team led by Dr. HU Han from the Institute of Vertebrate Paleontology and ...

This undated handout photo shows two images together with an interpretive line drawing of the Chicago Archaeopteryx, a ...

A remarkable Archaeopteryx fossil, the most complete ever found, is revealing secrets of early flight. Discovered in Germany ...

A new analysis of a pigeon-sized Archaeopteryx fossil in the collection of the Field Museum in Chicago is revealing an array ...

"Archaeopteryx is not the first dinosaur with feathers, nor is it the first dinosaur with wings. However, we think it is the ...