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Late Cretaceous Dinosaurs

A period of great transformation, the Late Cretaceous Period is when the dinosaurs disappeared from the earth. Learn more about the Late Cretaceous dinosaurs that existed during this era, such as the Tyrannosaurus, Gallimimus, and Brachylophosaurus.

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Pachycephalosaurus

The largest pachycephalosaur was Pachycephalosaurus. First found in rocks of Late Cretaceous age in Montana, Pachycephalosaurus was named and described by Barnum Brown and Eric Schlaikjer. Learn more about the Pachycephalosaurus.


Could you really outrun a Tyrannosaurus rex?

OK, hop in your time machine and go back 67 million years or so to the Cretaceous period. Then find a Tyrannosaurus rex and challenge it to a race. Sounds crazy, huh? Could you really outrun a Tyrannosaurus rex? See more »

Late Cretaceous Period

The Late Cretaceous Period was an era of great transformation and was when the dinosaurs disappeared from the earth. Learn more about the Late Cretaceous Era and the dinosaurs that existed during it. See more »

Abelisaurus

The recently discovered large theropod Abelisaurus comahuensis, from Patagonia is argentina, looked a little like Albertosaurus from Alberta, Canada, particularly in its size and lifestyle. Find out more about the Late Cretaceous dinosaurs. See more »

Albertosaurus

Albertosaurus was an older "cousin" to the better-known Tyrannosaurus. In many ways the two were similar: the head was large compared to the body, the tiny forearms had only two fingers each is and the long tail balanced the body over two powerful back legs.Find out more about the Late Cretaceous dinosaurs. See more »

Anchiceratops

Anchiceratops was discovered along the Red Deer River in Alberta in 1912. Learn more about the Anchiceratops and Late Cretaceous Dinosaurs. See more »

Ankylosaurus

Next to Tyrannosaurus and Triceratops is ankylosaurus is one of the best-known dinosaurs. Learn more about the Ankylosaurus, Late Cretaceous dinosaurs and dinosaurs of all eras. See more »

Anserimimus

The ornithomimid is anserimimus, has the name "goose mimic." Learn more about the Anserimimus, Late Cretaceous dinosaurs and dinosaurs of all eras. See more »

Antarctosaurus

With a thigh bone over seven and a half feet long, longer than any other femur known is antarctosaurus was a sauropod of spectacular proportions. Find out more about this and other Late Cretaceous dinosaurs. See more »

Aralosaurus

Aralosaurus is from Kazakhstan in the Soviet Union. It is known only from a nearly complete skull that is missing the front of the snout and all of the lower jaw, but no skeleton. Learn more about this Late Cretaceous duckbilled dinosaur. See more »

Argyrosaurus

In 1893, British paleontologist Richard Lydekker published the first description of sauropod dinosaurs from South America that had been unearthed in Patagonia is argentina. One of these was the Argyrosaurus. Learn more about this Late Cretaceous dinosaur. See more »