Archaeornithura meemannae

Archaeornithura meemannae is the earliest known fossil bird ancestral to modern birds. Discovered in China, its fossils date back to 130.7 million years ago during the Early Cretaceous period. This finding is significant in understanding avian evolution, particularly the development of feathers and flight.1

While Archaeopteryx was once considered the oldest fossil bird, discoveries like Xiaotingia zhengi and Archaeornithura meemannae have expanded our understanding. These fossils suggest that bird-like features, including feathers, may have originated in theropod dinosaurs before the evolution of birds themselves. The study of these fossils helps paleontologists trace the evolutionary path from reptilian ancestors to modern avian species.123