CERATOSAURUS
nasicornis
This therapod had a pair of bony ridges above its eyes and a
horn on its snout. These were probably used by males when fighting
for a mate. Ceratosaurus was an active predator and had
massive jaws and a hand with four fingers, unlike
Allosaurus, who had three.
TIME - 156 - 145
MYA, Late Jurassic period.
RANGE -
USA Colorado, Utah,
Wyoming
Africa - Tanzania (Mtwara).
DIET - Carnivore
(meat eater)
SIZE - Up to 20ft (6m)
long.
WEIGHT - 1 US
ton.
STEGOSAURUS
armatus
A well known
dinosaur, the stegosaurus was a large, heavy limbed, short
legged, plant eater. Two rows of triangular shaped
plates ran the course of its back, leading to its tail which
displayed four long spikes. The spikes were probably weapons of
defense, and the plates are now thought by many to help control body
temperature.
TIME - 156 - 145
MYA, Late Jurassic period.
RANGE - Wyoming,
Utah, Colorado.
DIET - Herbivorous
(plants)
SIZE - 25ft (7 m)
long.
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