: Brachiosaurus altithorax
Type of Dinosaur
: Late Jurassic
: Foliage (herbivorous)
: 100 years (roughly)
: 59 to 69 feet
: 28 to 62 tons
13 Brachiosaurus Facts for Kids
The Brachiosaurus was discovered in 1900 by Elmer S. Riggs in Colorado.
The Brachiosaurus got its scientific name Brachiosaurus altithorax 1903 by Elmer S. Riggs.
The name Brachiosaurus means: Arm Lizard.
The name Brachiosaurus is pronounced: "BRACK-ee-uh-SAWR-us".
The Brachiosaurus was part of a group of dinosaurs known as sauropods.
They lived during the Late Jurassic period about 153 to 154 million years ago in North America.
Estimates put the weight of a Brachiosaurus between 28 and 62 tons.
Estimates put the length of a Brachiosaurus between 59 and 69 feet.
Estimate put the life span of a Brachiosaurus around 100 years.
The Brachiosaurus was a high browsing herbivore and ate foliage at the top of tree canopies.
A fully grown Brachiosaurus probably had no predators. The average size of an apex predator living during the same period would of only been half the size.
In 1991, a main belt asteroid was named 9954 Brachiosaurus after this dinosaur.
In 1993, in the motion picture Jurassic Park, the Brachiosaurus was the first dinosaur to appear in a movie through the use of computer generation.
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A picture of the Brachiosaurus altithorax skeleton exhibit at the Chicago Field Museum.
A picture of the bronze replica of a Brachiosaurus outside the Chicago Field Museum.
Credit: Chicago Park District
A picture of the CGI replica of a Brachiosaurus from a Universal Pictures movie.
Credit: Universal Pictures
A graphical drawing that depicts a Brachiosaurus altithorax in the Late Jurassic period.
Credit: Joe Tucciarone / Ghetty Images
A diagram showing the skeletal structure of the Brachiosaurus fossils found by Elmer S. Riggs.
Credit: Scott Hartman
A size comparison diagram that is comparing the size of a human next to a Brachiosaurus.
Additional Resources on Brachiosaurus
Wikipedia - Brachiosaurus altithorax
– Learn more about the Brachiosaurus altithorax on Wikipedia.
Brachiosaurus pictures and facts
– View more pictures and learn more facts about the Brachiosaurus.
The proximal caudals of Brachiosaurus altithorax, FMNH P25107
– View and learn about the proximal caudals fossils found by Elmer S. Riggs
Elmer S. Riggs
– Learn about the American paleontologist who discovered the Brachiosaurus in 1900.