Page 116 - The Dinosaur Book and Other Wonders of the Prehistoric World (DK-Smithsonian)

Ornithomimosaurs

All these animals were
covered in feathers, but the
Found in China, Beishanlong lived feathers on the body probably
about 120 million years ago and had a simple hairlike structure.
grew to about 26 ft (8 m) long.

Beishanlong The long snout and deep lower

jaw supported a broad beak
similar to that of a duck.

For
50 years, the
only known parts
of Deinocheirus were
its huge arm
Gallimimus
bones.

A long, slender, flexible
neck made it easy to pick up
seeds and seize small animals.

The legs had powerful Struthiomimus
muscles but were slim near
the feet, like the legs of all
fast-running animals.

The long feathers on
the arms may have been
for display or to protect
eggs and young.
Ornithomimus Deinocheirus

The powerful, heavy-jawed tyrannosaurs ornithomimosaurs had small heads with toothless
had some close relatives that could hardly beaks; long necks; winglike arms with fluffy
look less like them—the ornithomimosaurs. feathers; and long, muscular back legs. They
These included animals like Struthiomimus, probably even had a similar diet of seeds, fruits,
which means “ostrich mimic,” and they certainly and small animals, although some had broader
114 resembled ostriches in many ways. Most beaks that they may have used for dabbling in

US_114-115_Ornithomimosaurs.indd 114 23/04/18 6:16 PM