Discover the 12 Dinosaurs That Start With B

Source：AZ Animals Time：12/10/2023

Dinosaurs are ancient reptiles and birds that roamed the earth from the Triassic to the Cretaceous period. They lived from around 234 million years ago until around 66 million years ago, when an asteroid struck the Yucatán Peninsula in Mexico and triggered a mass extinction event. The only dinosaurs that survived this event are birds, which are the only dinosaurs living today. This article explores 12 dinosaurs that start with B, including information about when and where they lived. The list only includes extinct species of dinosaurs and does not include currently living birds that start with B.

While this list highlights 12 dinosaurs that start with B, the full list includes 80 species. The end of this article includes a list of all 80 species.

1. Bactrosaurus

Bactrosaurus is a genus of dinosaurs from Asia. They lived around 96-85 million years ago, during the Late Cretaceous period. Bactrosaurus measured around 20 feet long and weighed 1.3 tons. They were herbivores, meaning they ate plant matter.

2. Bagaceratops

Bagaceratops is a genus of small dinosaurs from Asia. They lived around 72-71 million years ago, during the Late Cretaceous period. Bagaceratops were 3-5 feet long and weighed just 50-99 pounds. They are in the Ceratopsia suborder of dinosaurs, which also includes the well-known Triceratops. Like all Ceratopsia dinosaurs, Bagaceratops was herbivorous.

3. Bambiraptor

Bambiraptor is a genus of dinosaurs from North America. They lived around 72 million years ago, during the Late Cretaceous period. There is only one known Bambiraptor fossil, discovered in Montana. It is just 3 feet long, but the fossil may be from a juvenile. Bambiraptor is estimated to have weighed less than 5 pounds. The diet of Bambiraptor is currently unknown.

4. Barapasaurus

Barapasaurus is a genus of dinosaurs from India. They lived around 196-183 million years ago, during the Jurassic period. Barapasaurus measured around 40-45 feet long and weighed over 7 tons. The diet of Barapasaurus is currently unknown.

5. Barosaurus

Barosaurus is a genus of massive dinosaurs from North America. They lived around 152-150 million years ago, during the Late Jurassic period. Barosaurus measured around 82-89 feet long and weighed a whopping 13-22 tons. They were herbivores, using their long necks to reach for high plant matter. The name Barosaurus means “heavy lizard”, due to its massive size.

6. Baryonyx

Baryonyx is a genus of dinosaurs from England. They lived around 130-135 million years ago, during the Early Cretaceous period. Baryonyx measured around 25-33 feet long and weighed 1.3-2.2 tons. They were carnivores and ate mainly fish.

7. Beipiaosaurus

Beipiaosaurus is a genus of dinosaur from Asia. They lived around 125 million years ago, during the Early Cretaceous period. Beipiaosaurus measured around 7 feet long and weighed around 60 pounds. Interestingly, Beipiaosaurus is one of the heaviest feathered dinosaurs. They were mainly herbivorous.

8. Bellusaurus

Bellusaurus is a genus of dinosaurs from Asia. They lived around 161 million years ago, during the Late Jurassic period. Bellusaurus measured around 16 feet long and weighed around half a ton. They were herbivores. Most of the fossils that have been found are believed to be from juveniles.

9. Brachiosaurus

Brachiosaurus is a genus of dinosaurs from North America that were featured in the film Jurassic Park. They lived around 154-150 million years ago, during the Late Jurassic period. Brachiosaurus measured around 59-72 feet long and weighed between 31-52 tons. They were herbivores, with their long necks enabling them to eat from tall trees and plants. The name Brachiosaurus means “arm lizard”.

10. Brachylophosaurus

Brachylophosaurus is a genus of dinosaurs from North America. They lived from 81-76 million years ago, during the Late Cretaceous period. Brachylophosaurus measured around 30-36 feet long and weighed around 7.7 tons. They were herbivores. The name Brachylophosaurus means “short-crested lizard”, a reference to the bony crest on their skulls.

11. Brachytrachelopan

Brachytrachelopan is a genus of dinosaurs from South America, specifically found in Argentina. They lived around 160-150 million years ago, during the Late Jurassic period. Brachytrachelopan measured between 33-36 feet long and weighed around 5.5 tons. Only one specimen has ever been found. The name Brachytrachelopan means “short-necked Pan”, a reference to the Greek god.

12. Buitreraptor

Buitreraptor is a genus of dinosaurs from South America. They lived from 98-97 million years ago, during the Late Cretaceous period. Buitreraptor was a small dinosaur, around 5 feet long and weighing around 7 pounds. They were most likely carnivores, with a diet consisting of small lizards and mammals.