Confuciusornis

Confuciusornis is the earliest-known toothless, beaked bird. Like other birds, scientists believe
the Confuciusornis evolved from a carnivorous dinosaur that had feathers and a bird-like body structure. Hundreds of specimens of this flying bird have been discovered in east Asia.

Confuciusornis ("Confucius bird")
Locality found: eastern Asia
Age: Early Cretaceous, 120 mya
Size: 8-12 inches long
Diet: plants (and possibly fish)
Characteristics: beak, no teeth, short tail, and large wings
Significance: The earliest known toothless, beaked bird.

Image credits: main image, Sean Murtha; Sterling Nesbitt: courtesy of AMNH.