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Like all sauropods, Nigersaurus was a quadruped with a small head, thick hind legs, and a prominent tail. Among that clade, Nigersaurus was fairly small, with a body length of only 9 m (30 ft) and a femur reaching only 1 m (3 ft 3 in); it may have weighed around 1.9–4 t (2.1–4.4 short tons), comparable to a modern elephant.
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Footprints dating back 120 million years show where dinosaurs were able to cross between land that's now part of two different continents. Matching dinosaur footprints found more than 3,700 miles ...
In the United States, dinosaur footprints and trackways are found in the Glen Rose Formation, the most famous of these being the Paluxy River site in Dinosaur Valley State Park. These were the first sauropoda footprints scientifically documented, and were designated a US National Natural Landmark in 1969. Some are as large as about 3 feet across.
Researchers found that the dinosaur footprints were discovered over 3,700 miles away from each other – and that the footprints were made 120 million years ago on a "supercontinent known as ...
Paleontologists have suggested the prints may belong to a plant-eating dinosaur that roamed the area more than 200 million years ago 10-Year-Old Girl Discovers Dinosaur Footprints During Beach ...
The Connecticut River Valley trackways are the fossilised footprints of a number of Early Jurassic dinosaurs or other archosauromorphs from the sandstone beds of Massachusetts and Connecticut. The finding has the distinction of being among the first known discoveries of dinosaur remains in North America.
Across opposite sides of the Atlantic Ocean more than 3,700 miles apart, researchers have uncovered footprints left by dinosaurs that could have roamed from Africa to South America when the ...