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Meet Barosaurus
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Barosaurus |
85 feet long with a whip-like tail and 15 tonnes of weight that
could crush a car. Yet all it wants for dinner is a juicy plant.
But don’t misunderstand him. Just because he’s a vegan, doesn’t
mean he’s a pushover. The ROM’s huge Barosaurus skeleton was recently
re-discovered in our own vaults. Dating to about 150 million years
ago and collected from what is now Dinosaur National Monument, Utah,
in the early part of the 20th century, the skeleton was acquired
by the ROM in 1962 through a trade with the Carnegie Museum. The
pieces were dispersed around the collection room due to various
moves, and it was forgotten that all the pieces were from the same
animal. ROM curator David Evans re-discovered the specimen after
reading some recently published literature referring to the specimen
and he traced it back to the ROM’s collection. When all the parts
were placed together, the ROM realized it had the better part of
a skeleton of a rare, giant dinosaur. This is the only real sauropod
skeleton to be mounted in Canada, the largest dinosaur skeleton
on display in Canada, and the only real fossil Barosaurus mounted
in the world. When alive, the animal would have weighed about 15
tonnes (15,000 kgs).
Meet T. Rex
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T. Rex |
8 tonnes of pure muscle. 60 razor-sharp serrated teeth. A bite
force that could cut through bone like you do a powdered doughnut.
Quite simply the most formidable predator the Earth has ever known.
Tyrannosaurus rex, which means "Tyrant Lizard King", was a huge
meat-eating dinosaur found in western North America in rocks from
the end of the Cretaceous period, about 68 million to 65 million
years old. T. rex walked on its two hind legs, while the function
of its tiny but powerful arms remains uncertain. Tyrannosaurus rex
was among the largest known of the meat-eaters. Its eyes faced forward,
giving it stereoscopic vision. The structure of its jaw allowed
all the teeth to engage at once when biting. To support its massive
head, its body and neck were short and deep compared with other
carnivorous dinosaurs. The tail was long to balance the body and
head. Many of its massive bones were hollow, which reduced the weight
of the skeleton while still providing strength. T. rex was among
the last dinosaurs to exist prior to the Cretaceous-Tertiary (K/T)
extinction event.
Meet Hadrosaur
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Hadrosaur |
Hadrosaurs, or ‘duck-billed’ dinosaurs as they’re more popularly
known, were the most common type of dinosaur in North America during
the Cretaceous period, but don’t tell them that. With unusual features
such as crested heads and hundreds of cheek teeth, they’re anything
but average. And they don’t look a day over 65 million. Hadrosaurs
lived during the late Cretaceous period from about 80 million to
65 million years ago. These herbivores often had crested heads and
ranged in length from 20 to 40 feet long and 14 feet high. The ROM
is known for its large and varied collection of hadrosaur specimens,
including a Maiasaura (meaning ‘good mother lizard’). Unlike many
other herbivorous dinosaurs, hadrosaurs had no obvious protection
from attack by carnivores. Some species probably relied on herding
behaviour, good eyesight, sense of smell and large size to avoid
predation.
Visit the ROM at www.rom.on.ca
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