BACTROSAURUS
BAGACERATOPS
BAHARIASAURUS
BARAPASAURUS
BAROSAURUS
BARYONYX
BELLUSAURUS
BOTHRIOSPONDYLUS
BRACHIOSAURUS
BRACHYCERATOPS
BRACHYLOPHOSAURUS
BRADYCNEME
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BACTROSAURUS
Pronunciation: BAK-truh-SAWR-us 
Translation: Bactrian Lizard
Also known as:
Description: Herbivore, Bipedal
Order: Ornithischia
Suborder: Ornithopoda
Infraorder: Iguanodontia
Family: Hadrosauridae
Height: 8 feet (2.4 meters)
Length: 20 feet (6.1 meters)
Weight:
Period: Late Cretaceous
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Notes: Bactrosaurus is one of the earliest known duck-billed
hadrosaurs. It had fewer teeth than did later hadrosaurs. It lived
in what is now Mongolia.
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BAGACERATOPS
Pronunciation: bag-uh-SAIR-uh-tops
Translation: Small Horned Face
Also known as:
Description: Herbivore, Quadrupedal
Order: Ornithischia
Suborder: Marginocephalia
Infraorder: Ceratopsia
Micro-order Neoceratopsia
Family: Protoceratopsidae
Height: 12 inches (0.3 meters)
Length: 36 inches (0.9 meters)
Weight: 7 pounds (3.2 kg)
Period: Late Cretaceous
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Notes: Discovered in the Gobi desert of Mongolia, Bagaceratops
was a small, primitive ceratopsian. It had a very small horn on its
nose and its neck was protected by a very short frill. Glossary
In Asia, the protoceratopsians were prevalent during the Late
Cretaceous, while no certain neoceratopsians are known, whereas
at the same time in North America, the neoceratopsians were more
prevalent and only a few protoceratopsians have been discovered.
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BAHARIASAURUS
Pronunciation: buh-HAR-ee-uh-SAWR-us
Translation: Baharije Lizard
Also known as:
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Infraorder: Tetanurae
Micro-order: Carnosauria
Height: Length:
Weight: Period: Cretaceous
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Notes: The name was given to fragmentary remains found in
Egypt. It was probably similar to Megalosaurus.No further
study of Bahariasaurus is possible until new specimens are
identified, for its remains were destroyed in the World War II
bombing of Stuttgart, Germany.
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BARAPASAURUS
Pronunciation: buh-RAP-puh-SAWR-us
Translation: Big Leg Lizard
Also known as:
Description: Herbivore, Quadrupedal
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
Family: Vulcanodontidae
Height: 25 feet (7.6 meters)
Length: 60 feet (18.3 meters)
Weight:
Period: Early Jurassic
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Notes: Known from parts of over 300 individual specimens
found in India yet no skulls have been recovered. Barapasaurus
is the oldest known sauropod certain to have been a sauropod,
however; Vulcanodon may be older. While Barapasaurus gathered
in herds, as did many sauropods, it differed in that it had
comparatively slender legs.
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BAROSAURUS
Pronunciation: BARE-uh-SAWR-us
Translation: Heavy Lizard
Also known as:
Description: Herbivore, Quadrupedal
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
Family: Diplodocidae
Height: 40 feet (12.2 meters)
Length: 79 feet (24.1 meters)
Weight: 50,000 pounds (22,680 kg)
Period: Late Jurassic
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Notes: Barosaurus is a relatively rare sauropod. The first
dinosaur to be found in the Black Hills of South Dakota, its
remains have also been found in East Africa suggesting the
connection of the modern African and North American
continents during Late Jurassic times. The neck of Barosaurus
was 30 feet long, longer than its closest relative, the whip-tailed
giant Diplodocus but its tail was shorter and its hind limbs stockier.
Gastroliths were discovered among its the bones, indicating that at least
some dinosaurs swallowed stones to grind the food they consumed.
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BARYONYX
Pronunciation: bare-ee-ON-iks
Translation: Heavy Claw
Also known as:
Description: Carnivore, Bipedal, semi Quadrupedal
Order: Saurischia
Suborder: Theropoda
Family:
Height: 6 feet (1.8 meters)
Length: 30 feet (9.1 meters)
Weight: 4,000 lbs (1,814 kg)
Period: Early Cretaceous
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Notes: Discovered in southern England, Baronyx had a huge
curved claw over 12 inches (30-cm) in length on each hand.
Its long narrow jaws were equipped with small pointed teeth,
twice as many as a theropod would normally have, which leads
many to think that Baryonyx was a fisher. It might have waded
in shallow water to spear fish with its claws.
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BELLUSAURUS
Pronunciation: BEL-uh-SAWR-us
Translation: Beautiful lizard
Also known as:
Description: Herbivore, Quadrupedal
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
Family: Cetiosauridae (not confirmed)
Height: Length: 16.4 feet (5 meters)
Weight: Period: Middle Jurassic
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Notes: Sauropod skulls were small and light-boned, and finds
are rare, but a complete Bellusaurus skull exists, showing that
this very small sauropod had a deep head with a sloping face.
There is a possibility that all Bellusaurus finds may be juveniles,
hence their small size.
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BOTHRIOSPONDYLUS
Pronunciation: bah-three-uh-SPON-dih-lus
Translation: Excavated Vertebrae
Also known as: Marmarospondylus
Description: Herbivore, Quadrupedal
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
Family: Brachiosauridae
Height: 35 feet (10.7 meters)
Length: 66 feet (20.1 meters)
Weight:
Period: Late Jurassic
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Notes: Bothriospondylus is known from fragmentary remains
discovered in Western Europe and Madagascar. This sauropod
had large teeth and a long tail. Its forelegs were approximately
as long as its hind legs.
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BRACHIOSAURUS
Pronunciation: BRACK-ee-uh-SAWR-us
Translation: Arm Lizard
Also known as:
Description: Herbivore, Quadrupedal
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
Family: Brachiosauridae
Height: 50 feet (15.2 meters)
Length: 100 feet (30.5 meters)
Weight: 120,000 lbs (54,432 kg)
Period: Late Jurassic
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Notes: Brachiosaurus is one of the largest known land animals,
based on a complete skeleton found in Tanzania. Each neck
vertebra was more than 3 feet (1 meter) long. Its large nostrils
were located on top of its head, which caused speculation that
Brachiosaurus might have spent time submerged in water.
However, recent studies have shown that a creature as large as
Brachiosaurus could not have inhaled and inflated its lungs against
the water pressure at depths of total submergence. Its front
legs were longer than its rear legs and it stood 24 feet (7.3 meters)
at the shoulder. It had small narrow feet for its size and the first
digit of the front foot had a claw as did the first three digits of the
hind foot. The function of the claws is unknown though they may
have been used for raking plants or in self defense.
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BRACHYCERATOPS
Pronunciation: BRAK-ee-SAIR-uh-tops
Translation: Short Horned Face
Also known as:
Description: Herbivore, Quadrupedal
Order: Ornithischia
Suborder: Marginocephalia
Infraorder: Ceratopsia
Micro-order Neoceratopsia
Family: Ceratopsidae
Height: 2 feet (0.6 meters)
Length: 6 feet (1.8 meters) (Juveniles)
Weight:
Period: Late Cretaceous
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Notes: Information about Brachyceratops is known primarily from
young specimens discovered in Montana. Their short faces and frills
were only half developed. At the same dig, an adult ceratopsian was
discovered, indicating that the young specimens were part of a
family unit.
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BRACHYLOPHOSAURUS
Pronunciation: brack-ee-LO-fuh-SAWR-us
Translation: Short-Crested Lizard
Also known as:
Description: Herbivore, Bipedal
Order: Ornithischia
Suborder: Ornithopoda
Infraorder: Iguanodontia
Family: Hadrosauridae
Height: 12 feet (3.7 meters)
Length: 28 feet (8.5 meters)
Weight:
Period: Late Cretaceous
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Notes: Known from nearly complete material found in Montana,
and Alberta, Canada, this duck-billed dinosaur walked on its hind
feet and ate the leaves of plants and flowers.
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BRADYCNEME
Pronunciation: BRAY-dee-kuh-NEE-mee
Translation: Slow Leg or Heavy Shin
Also known as:
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Infraorder: Tetanurae
Micro-order: Maniraptora (of the microorder Coelurosauria)
Family: Tro”dontidae(not confirmed)
Height:
Length:
Weight:
Period: Late Cretaceous
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Notes: Bradycneme is known only through a portion of a lower
leg bone with a distinctive ankle joint. At one time, it was thought
to be the fossil leg of a giant owl. The fossil was discovered
in Transylvania.
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