TALARURUS
TANIUS
TARASCOSAURUS
TARCHIA
TECHNOSAURUS
TELMATOSAURUS
TENONTOSAURUS
THECODONTOSAURUS
THERIZINOSAURUS
THESCELOSAURUS
TIENSHANOSAURUS
TITANOSAURUS
TOROSAURUS
TORVOSAURUS
TRICERATOPS
TROÖDON
TSINTAOSAURUS
TUOJIANGOSAURUS
TYLOCEPHALE
TYRANNOSAURUS
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TIENSHANOSAURUS
Pronunciation: tih-en-SHAN-o-SAWR-us 
Translation: Tienshan Lizard
Also Known As:
Description: Herbivore, Quadrupedal
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
Family: Camarasauridae (not confirmed)
Height: 16 feet (4.9 meters)
Length: 33 feet (10.1 meters)
Weight:
Period: Late Jurassic
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Notes: Tienshanosaurus was a late Jurassic sauropod that
resembled Euhelopus in size and shape. The only remains
of Tienshanosuarus were found in Xinjiang, China, and were
fragmentary.
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TITANOSAURUS
Pronunciation: tye-TAN-uh-SAWR-us
Translation: Titanic Lizard
Also Known As:
Description: Herbivore, Quadrupedal
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
Family: Titanosauridae
Height: 25 feet (7.6 meters)
Length: 65 feet (19.8 meters)
Weight:
Period: Late Cretaceous
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Notes: Found in India and Argentina, Titanosaurus resembled
Diplodocus. It had a broad, low, armored back speckled
with small armored plates and a tail similar to a whip lash.
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TOROSAURUS
Pronunciation: TOR-uh-SAWR-us
Translation: Protuberance Lizard
Also Known As:
Description: Herbivore, Quadrupedal
Order: Ornithischia
Suborder: Marginocephalia
Infraorder: Ceratopsia
Micro-order Neoceratopsia
Family: Ceratopsidae
Height: 8 feet (2.4 meters)
Length: 20.3 feet (6.2 meters)
Weight: 9,900 - 18,000 pounds
(4,491 - 8,165 kg)
Period: Late Cretaceous |
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Notes: While Torosaurus has been found in Montana, South
Dakota, Utah, Wyoming, Texas, New Mexico, and Canada,
it is a fairly uncommon dinosaur. It had the largest skull of any
land animal that ever lived, measuring almost nine feet. The last
and most advanced of the horned dinosaurs, Torosaurus had
nose horn and a large brow horn that pointed forward. Behind
the brow horn, the huge smooth crest extended back almost
five feet.
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TORVOSAURUS
Pronunciation: TOR-vuh-SAWR-us
Translation: Savage Lizard
Also Known As:
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Infraorder: Ceratosauria
Family: Megalosauridae
Height: 14 feet (4.3 meters)
Length: 29.5 feet (9 meters)
Weight: 12,000 pounds (5,440 kg)
Period: Late Jurassic
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Notes: Remains of Torvosaurus have been found in Colorado
and Wyoming. It was a powerfully built flesh eater with savage
claws. Its structure was similar to that of Megalosaurus and it
is probably related to Afrovenator.
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TRICERATOPS
Pronunciation: try-SAIR-uh-tops
Translation: Three-horned Face
Also Known As:
Description: Herbivore, Quadrupedal
Order: Ornithischia
Suborder: Marginocephalia
Infraorder: Ceratopsia
Micro-order: Neoceratopsia
Family: Ceratopsidae
Height: 9.5 feet (2.9 meters)
Length: 26 feet (7.9 meters)
Weight: 14,000 pounds (6,350 kg)
Period: Late Cretaceous
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Notes: Found in Montana, South Dakota, Colorado, Wyoming,
and Canada, Triceratops was the largest, heaviest, most common
and best-known ceratopsian. Sixteen species have been assigned
to Triceratops, although some scientists believe that only one
species exists, and that the variations found between ceratopsian
horns are similar to those found in modern horned animals such as
cows. Its massive head had a deep, narrow, parrot-like beak with
brow horns 3 feet (0.9 meters) long, and its frill could reach widths
of 7 feet (2.5 meters).
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TROÖDON
Pronunciation: TRO-uh-don
Translation: Gnaw-Tooth
Also Known As: Stenonychosaurus
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Infraorder: Tetanurae
Micro-order: Maniraptora (of the microorder Coelurosauria)
Family: Troödontidae (not confirmed)
Height: 2.5 feet (0.8 meters)
Length: 6 feet (1.8 meters)
Weight: 100 pounds (45.4 kg)
Period: Late Cretaceous
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Notes: Based upon its brain-to-body-weight ratio, Troödon
may have been the most intelligent dinosaur. Aside from its large
brain, it had large eyes, suggesting a nocturnal lifestyle. The
position of the eyes implies that Troödon may have had
stereoscopic vision -- the ability to perceive depth. Its lightweight
body structure and rod-like tail indicates that it was built for
speed. It probably used its long fingers to snare small mammals
and reptiles.
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TSINTAOSAURUS
Pronunciation: SINT-ow-SAWR-us
Translation: Chinese Lizard, or Tsintao Lizard
Also Known As: Tanius
Description: Herbivore, Bipedal
Order: Ornithischia
Suborder: Ornithopoda
Infraorder: Iguanodontia
Family: Hadrosauridae
Height: 24 feet (7.3 meters)
Length: 33 feet (10 meters)
Weight:
Period: Late Cretaceous
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Notes: Found in Shanong, China, Tsintaosaurus was a large
duck-billed dinosaur. Some believe Tsintaosaurus is the same
as Tanius.
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TUOJIANGOSAURUS
Pronunciation: too-HWANG-o-SAWR-us
Translation: Tuojiang Lizard
Also Known As:
Description: Herbivore, Quadrupedal
Order: Ornithischia
Suborder: Thyreophora
Infraorder: Stegosauria
Family: Stegosauridae
Height: 11 feet (3.4 meters)
Length: 30 feet (9.1 meters)
Weight: 6,000 pounds (2,700 kg)
Period: Late Jurassic
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Notes: The first plated dinosaur known in China, Tuojiangosaurus
resembled Stegosaurus but had smaller plates. It had two pairs
of sharp spikes on its tail.
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TYLOCEPHALE
Pronunciation: tye-lo-SEF-uh-lee
Translation: Swollen Head
Also Known As:
Description: Herbivore, Bipedal
Order: Ornithischia
Suborder: Marginocephalia
Infraorder: Pachycephalosauria
Family: Pachycephalosauridae
Height: 3.5 feet (1.1meters)
Length: 7 feet (2.1 meters)
Weight:
Period:
Late Cretaceous
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Notes: The skull of Tylocephale was thick and decorated with
small spikes similar to those on the skull of a Stegoceras. It was
discovered in Mongolia.
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TYRANNOSAURUS
Pronunciation: tye-RAN-uh-SAWR-us
Translation: Tyrant Lizard
Also Known As: Tarbosaurus
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Infraorder: Tetanurae
Micro-order: Carnosauria
Family: Tyrannosauridae
Height: 23 feet (7.0 meters)
Length: 50 feet (15.2 meters)
Weight: 16,000 pounds (7,258 kg)
Period: Late Cretaceous
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Notes: One of the largest-ever flesh-eating land animals,
Tyrannosaurus is also the most famous. For example, it has
been featured in more movies than any other single dinosaur.
Tyrannosaurus had a huge skull with powerful jaws lined with
7-inch (18-cm) serrated teeth. Contrary to earlier conceptions
of sluggish mobility, Tyrannosaurus is now thought by some to
have been capable of bursts of up to 30 mph (48 km/h). In
contrast to its massive legs, Tyrannosaurus had relatively short,
small arms. Although they seem vestigal and useless, they were
powerful enough to lift over 450 pounds (270 kg). Tyrannosaurus
was found in North America and Asia. The most famous species is
Tyrannosaurus rex from North America; Tyrannosaurus bataar from
Asia was formerly known as Tarbosaurus.
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