B

Bactrosaurus it is one of the earliest of the duck-billed dinosaurs.

Baculites was a genus of ammonite that lived during the late Cretaceous era.

Badlands an important area, with eroded gullies and valleys with very tiny rainfall. These areas were named Badlands since they are of no use for anything and a vast place to locate fossils.

Bagaceratops it means "small horned face" and it was a ceratopsian dinosaur about 3 feet (1 m) long.

Bagaraatan it means "small hunter" and it was a speedy, bipedal, meat-eating dinosaur

Baluchitherium is a big, extinct, hornless rhinoceros. It was one of the biggest land mammals. Adults be about 26 feet (8 m) long, 18 feet (5.5 m) tall, and weighed about 17 - 18 tons (16 tonnes).

Barapasaurus it means "big-legged lizard" and it was a sauropod (a long-necked, long-tailed, small-headed, short-legged giant)

Barapasaurus perhaps the first of the enormous sauropods.

Barosaurus it means "heavy lizard" and it was a diplodocid sauropod (a long-necked, long-tailed, small-headed, short-legged giant)

Barsboldia was a duck-billed dinosaur (a lambeosaurine hadrosaur) about 30 feet (10 m) long, weighing approximately 6500 kg.

Baryonyx it means "heavy claw" was an unusual theropod dinosaur (a carnivore) from the early Cretaceous era, about 125 million years ago

Basilosaurus was an Archaeoceti whale, a primal, extinct whale from the Eocene epoch, 50 million of years ago.

Beipiaosaurus it is the simply recognized feathered therizinosaur.

Bernissartia it is one of the least of all the Cretaceous crocodiles.

Biped any living thing that walks on two legs.

Bones a rigid tissue that forms most of the skeleton of animal and humans. Bones petrify well.

Borogovia this theropod was named following a Lewis Carroll poem.

Brachytrachelopan this sauropod had an abnormally short neck.

Brontosaurus The name by which Apatosaurus was recognized for many years (Jurassic).