The Chicago specimen is the smallest Archaeopteryx ever discovered, about the size of a pigeon. It was found in limestone ...

Archaeopteryx is the fossil that proved Darwin right. It is the oldest known fossil bird and helps demonstrate that all birds ...

A Chicago fossil of Archaeopteryx uncovers unknown features, supporting theories of bird evolution from dinosaurs and highlighting its unique flight adaptations.

By Will Dunham (Reuters) -A new analysis of a pigeon-sized Archaeopteryx fossil in the collection of the Field Museum in ...

Archaeopteryx is the fossil that clearly demonstrated Darwin's views. It's the oldest known fossil bird, and it helps show that all birds -- including the ones alive today -- emerged from dinosaurs.

Scans of the Chicago Archaeopteryx show feather and bone features that worked together to create lift.

Archaeopteryx is the fossil that proved Darwin right. It's the oldest known fossil bird, and it helps show that all birds— including the ones alive ...