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Marsh, 1877 [1][2] Apatosaurus (/ əˌpætəˈsɔːrəs /; [3][4] meaning "deceptive lizard") is a genus of herbivorous sauropod dinosaur that lived in North America during the Late Jurassic period. Othniel Charles Marsh described and named the first-known species, A. ajax, in 1877, and a second species, A. louisae, was discovered and named by ...
Brontosaurus (/ ˌbrɒntəˈsɔːrəs /; [1][2] meaning "thunder lizard" from the Greek words βροντή, brontē "thunder" and σαῦρος, sauros "lizard") is a genus of herbivorous sauropod dinosaur that lived in present-day United States during the Late Jurassic period. It was described by American paleontologist Othniel Charles Marsh ...
Brachiosaurus (/ ˌ b r æ k i ə ˈ s ɔː r ə s /) is a genus of sauropod dinosaur that lived in North America during the Late Jurassic, about 154 to 150 million years ago. [1] It was first described by American paleontologist Elmer S. Riggs in 1903 from fossils found in the Colorado River valley in western Colorado, United States.
Apatosaurinae (the name deriving from the type genus Apatosaurus, meaning "deceptive lizard") is a subfamily of diplodocid sauropods, an extinct group of large, quadrupedal dinosaurs, the other subfamily in Diplodocidae being Diplodocinae. Apatosaurines are distinguished by their more robust, stocky builds and shorter necks proportionally to ...
They are notable for the enormous sizes attained by some species, and the group includes the largest animals to have ever lived on land. Well-known genera include Apatosaurus, Argentinosaurus, Alamosaurus, Brachiosaurus, Camarasaurus, Diplodocus, and Mamenchisaurus. [3] [4]
The Morrison Formation records an environment and time dominated by gigantic sauropod dinosaurs, such as Apatosaurus, Barosaurus, Brachiosaurus, Brontosaurus, and Camarasaurus. [8] Its great size may have been a deterrent to the predators Allosaurus and Ceratosaurus : their remains have been found in the same strata , which suggests that they ...
Littlefoot has been called a Brontosaurus [9] [10] [11] and a Brachiosaurus, [12] but is now identified as an Apatosaurus. [13] [1] He was originally named "Thunderfoot" by the creators of the first film, until it was discovered that a Triceratops character from a children's book had the same name. [14]
From these specimens he named Brachiosaurus [5] and Brachiosauridae, [6] and presented evidence that Apatosaurus and Brontosaurus were the same genus of dinosaur. [ a ] [ 7 ] He also proposed that sauropods were terrestrial animals, based on their limb structure, [ 6 ] but this was largely dismissed in favor of aquatic sauropods until the 1970s ...