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Scientific name Sauropoda
Home time period Late Triassic-Late Cretaceous
Creature type Herbivorous Saurischian Dinosaurs
Deaths caused 0
Appearances Fire and Water

Sauropods were one of the most largest groups of dinosaurs to have ever existed, and range in size from 10-50 metres and 12-100 tons. They followed the prosauropods, small, early sauropod-like creatures that could stand on two or four legs that lived from the Mid Triassic to Early Jurassic. One of the earliest Sauropods were Isanosaurus.

The tallest sauropods were Sauroposeidons, which were up to 18 metres tall, while Brachiosaurus was 16 metres tall. The longest were Amphicoelias reaching lengths of up to 40-60 metres. The heaviest were Argentinosaurus at 100 tons. They were the only group of herbivorous Saurischians.

Sauropods are a subgroup of the saurischian, or "lizard-hipped," dinosaurs. This group of quadrupedal (four-legged), herbivorous animals had a relatively simple body plan which varied only slightly throughout the group. Early relatives of the sauropods, the Late Triassic plateosaurs or prosauropods, may have occasionally stood on their hind legs.

True sauropods appeared in the Late Triassic and began to diversify in the Middle Jurassic, about 180 million years ago. They had very long necks and tails, relatively small skulls and brains, and erect limbs reminiscent of the limbs of elephants. The nostrils of these animals were located high up on the skulls, rather than being located at the end of the snout like those of so many other terrestrial vertebrates. In fact, in some examples these nostril openings were so far up the skull that they were very close to the eye openings. Still another unusual feature which appeared in some of the later sauropods was rudimentary body armor.

Geographically, these animals were widespread, with remains, in the form of bones or footprints, having been found on all of the continents except Antarctica. In addition to their wide geographic distribution, sauropods are one of the most long-lived groups of dinosaurs, spanning some 100 or so million years, from the Lower Jurassic to the Upper Cretaceous. The end of the Jurassic represents, in terms of abundance, the zenith in sauropod history.

Classification

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