Paleontologists

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Hidden Dinosaurs and Confusing Teeth

After many false starts, scientists finally understood the first fossils of horned dinosaurs

A line-drawing of the Triceratops known as "Raymond."

Triceratops: An A+ Dinosaur

Paleontologists have recently learned how these three-horned dinosaurs fought, grew up and socialized

A hump-backed Spinosaurus, restored by R.E. Johnson and from Bailey 1997.

Was Spinosaurus a Bison-Backed Dinosaur?

Spinosaurus and Ouranosaurus were fundamentally different, and they remain among the most bizarre dinosaurs yet discovered

The reconstructed skeleton of "Brontosaurus" from W.D. Matthew's 1915 book Dinosaurs.

Two Views on How to Make a Baby Sauropod

It took a long time—and a new understanding of sauropod lifestyles—to figure out whether they laid eggs or gave birth to live young

The horns of Marsh's Bison alticornis, now recognized as those of a ceratopsian dinosaur.

When Triceratops Was a Giant Bison

The giant with the "three-horned face" was originally mistaken for a very different creature

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The Diplodocus Tripod

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A Delayed Tyrannosaurus Showdown

O.C. Marsh's conception of an eight-spiked Stegosaurus

The Myth of the Eight-Spiked Stegosaurus

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Bringing Dinosaurs Up to Speed

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A 1980s Look at Smithsonian Dinosaurs

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How Tyrannosaurus Lost a Finger

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When Dinosaurs Were New

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Will the Dinosaurs Return?

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Dinosaur Sighting: Vintage Stegosaurus

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Creating an Allosaurus Feast

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Always Brontosaurus to Me

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Restoring Nedoceratops: Gored by a Horned Rival?

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Hadrosaurus Was Real, After All

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What Do We Really Know About Utahraptor?

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150 Years of Archaeopteryx

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