|Dinosaurs in Their Time
DinoGuide: Edmontosaurus regalis
Edmontosaurus and other duck-billed dinosaurs, or hadrosaurs, were very common
in the northern hemisphere during the Late Cretaceous Period. Some
species of duck-billed dinosaurs moved about in herds numbering
hundreds or thousands of individuals.
When first discovered,
hadrosaurs were thought to be water dwellers. Later study showed
that while the body is built for land, the broad tail enabled these
animals to move very easily through water. The paddle-like hands
of Edmontosaurus support this observation.
The snout of Edmontosaurus ended in a large, broad beak suitable for cropping
vegetation. Up to 2,000 tightly packed teeth at the back of the
jaws were used for chewing and grinding tough plant material.
Edmontosaurus is displayed in Dinosaurs in Their Time as the carcass over which two T. rex specimens are fighting. Edmontosaurus would have been a common prey animal for T. rex.
CARNEGIE SPECIMEN NUMBER:
SCIENTIFIC NAME MEANING:
"Royal reptile from Edmonton, Canada"
Dinosauria : Ornithischia : Ornithopoda : Hadrosauridae : Hadrosaurinae
to 40 feet (10 meters)
FORMATION & LOCALITY:
Horseshoe Canyon Formation; Red Deer River Valley, Alberta, Canada
Exchange from Royal Ontario Museum, Toronto; collected for ROM by Levi Sternberg, 1931
Late Cretaceous, 66–71 million years ago
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