Brontosaurus Facts: Meet the Giant Herbivorous Dinosaur of the Late Jurassic

Brontosaurus is a large sauropod dinosaur that lived in the Late Jurassic, belonging to the order Saurischia, with fossils found mainly in North America. The scientific name Brontosaurus means "thunder lizard," generally thought to relate to its enormous size, as the sound of its footsteps when moving in herds was like thunder. It is one of the most famous dinosaurs, often appearing in museum exhibits and popular science books.

In appearance, Brontosaurus has typical sauropod features: a thick, long neck, a slender, long tail, a very small head, and four thick, pillar-like legs supporting its heavy body. An adult individual could reach a body length of about twenty meters, making it a giant among the land animals of its time. Its nostrils are located high on top of its head, and its teeth are small and peg-like, suitable only for stripping off plants, not for chewing.

Brontosaurus was a herbivorous dinosaur, feeding mainly on the leaves and branches of ferns and gymnosperms, and it habitually swallowed small stones to help its stomach grind food. It moved slowly and was relatively gentle in temperament, and its slender tail may have been used to maintain balance or drive away predators.

In terms of naming, Brontosaurus long had a dispute over its classification with Apatosaurus, and was once regarded as a different name for the same type of animal, until later research suggested that Brontosaurus could be re-established as an independent genus. In early museum mounts, people also gave it the wrong skull, which was only gradually corrected later. It belongs to the sauropod dinosaurs along with Diplodocus and Brachiosaurus, but Brachiosaurus had longer forelimbs and held its head high, while Brontosaurus extended its neck more horizontally, which can be used to distinguish them.