570 vanished lives

12Mesozoic

Feathers, wings, teeth and a long bony tail capture a mosaic of dinosaur and bird traits.

233Mesozoic

A toothless beak, clawed wings and—in some individuals—two long ribbon-like tail feathers appeared together.

234Mesozoic

Its wings shrank to small bones while rear-set legs turned it into a superb Mesozoic pursuit diver.

235Mesozoic

Its body and flight resembled a tern, but a row of true teeth remained inside the long jaws.

336Mesozoic

A waterbird close to ducks lived before the non-avian dinosaurs vanished.