Late Jurassic · 150–148 million years ago

Archaeopteryx

"Ancient Wing"
/ar-kee-OP-ter-ix/
Jurassic
🐦
0.5m
Length
0.2m
Height
1 kg
Weight
🥩
Carnivore
~40 km/h (glide)
Top speed
📍
Europe

Archaeopteryx is one of the most important fossils in the history of palaeontology. Discovered just two years after Darwin published On the Origin of Species, it immediately provided stunning evidence for evolution — a creature perfectly intermediate between reptiles and birds. It had the feathers and wishbone of a bird, but also teeth, three clawed fingers on each wing, and a long bony tail. Whether it could actively fly or only glide remains debated.

Key fact
The evolutionary missing link between non-avian dinosaurs and modern birds — it had feathers and wings, but also teeth, clawed fingers, and a bony tail.