DEAGOSTINI / UIG / SCIENCE PHOTO LIBRARY DEAGOSTINI / UIG / SCIENCE PHOTO LIBRARY
Alamosaurus dinosaurs. Computer illustration of an Alamosaurus sp. dinosaur by a lake. This herbivorous titanosaurian sauropod lived during the Late Cretaceous Period (around 100 to 66 million years ago), in what is now North America. It is thought to be the largest dinosaur from North America, weighing around 73 tonnes.
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