Dinosaur tail preserved in amber, with feathers

99-million-year-old fossil provides 3-D details

Preserved dino feather

SHAKE YOUR TAIL FEATHER  This feathered dinosaur tail is preserved in a 99-million-year-old lump of amber. Similarly stuck are several ants, a beetle and bits of foliage.

Ryan C. McKellar/Royal Saskatchewan Museum

In a golden chunk of 99-million-year-old amber, paleontologists have spotted something extraordinary: a tiny dinosaur tail with pristinely preserved feathers.