Parasaurolophus

(PAR-ah-sawr-OL-off-us)

Para = similar
Saurus = lizard
Lophus = crest

Size: 16 feet tall, 30 feet long
Weight: About 3 tons
Range: Western North America
Habitat: Woodlands
Diet: Plants, leaves, pine needles
Time period: Cretaceous

The Parasaurolophus is a less-commonly found member of the family of hadrosaurids, or "duck-billed" dinosaurs, known for their broad, flat mouths. But the species' most notable feature is the long, curved crest on top of each animal's head.

Honk if You Love Dinosaurs

There are many theories about how Parasaurolophus and similar species used their crests; evidently they didn't help for breathing or fighting. It's believed the Parasaurolophus forced nasal air through the hollow crest to create loud, resonant sounds, probably for mating rituals or communicating.

They're Playing our Song

Many animals today are known to create distinct sounds with nasal air, including modern Asian Elephants which trumpet with their trunks.

Impressive at Both Ends

The Parasaurolophus also had a taller, larger tail than most dinosaurs of comparable size. Its uniquely bigger appendage may have been effective for attracting mates or for scaring enemies.

A Leg Up on Predators

The Parasaurolophus often walked on all fours, but its strong rear legs and wide pelvis likely enabled it to stand easily and run quickly if attacked.