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The Scoop on Dino Poop

The Scoop on Dino Poop

© Getty T rex named Trix at Naturalis Museum of Leiden

By Mary Meinking, Cricket Media

What’s as big as a loaf of bread, weighs as much as a frozen turkey, and tells us what dinosaurs ate? Give up? It’s petrified dinosaur poop, also known as a coprolite. The scoop on dino poop is finally flushed out!

Coprolites don’t smell like poop after millions of years, because they’ve turned to stone. Their shape varies from small pellets to long logs, from curly spirals to flat pancakes. They also vary in color.

By studying coprolites, scientists have discovered what dinosaurs ate. Carnivorous (meat-eating) dinosaurs’ coprolites contain bone fragments, teeth, fish scales, or snail shells. And herbivorous (plant-eating) dinosaurs’ coprolites contain shredded wood, stems, leaves, flowers, or seeds.

A world-record coprolite was recently found in Saskatchewan, Canada. It’s 17 inches long and 6 inches around. The coprolite contained the crushed bones of an unfortunate herbivore. The poop came from the largest carnivore in the area, a Tyrannosaurus rex.

This coprolite tells us not only what T. rex ate but how it ate. Previously, scientists believed that T. rex swallowed large chunks of meat and bones without chewing. But after examining the coprolite, they now realize that T. rex crushed mouthfuls of bones as it chewed. Bone fragments passed through the dinosaur’s intestines in its poop.

Dr. Karen Chin is one of the scientists studying this giant T. rex coprolite. In fact, Dr. Chin is the world’s leading paleoscatologist— a scientist who studies fossilized poop. To find out what’s inside a coprolite, it is cut open, x-rayed, smashed, or sliced into superthin slices. The slices are studied under a powerful microscope. Dr. Chin is never sure what “jewel” she might find inside each coprolite. Who would have guessed that lumpy rocks could reveal such important information? Paleontologists, that’s who.

See more at: Cricket Media




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Kids Magazine: The Scoop on Dino Poop
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