Outside Mamenchisaurus

Part of the The World's Largest Dinosaurs exhibition.

For 140 million years, sauropods roamed Earth--but today we have just fossils to tell us about what these animals looked like from the outside. How big were they? How big were their young? What did their skin look like? How fast could they move? And while fossils can't answer every question--like what color the animals were--they do reveal an astonishing amount of information that helps paleontologists understand these massive creatures.

Article Sauropod Dinosaur Babies All dinosaurs reproduced by laying eggs, just as living birds and many modern reptiles do. Article Locomotion As amazing as it seems, we have footprints of sauropods on nearly every continent, left during their 140-million-year stint on Earth.... Article Size Sauropods came in different sizes--most of them big. An adult female Mamenchisaurus would have weighed about 13 tons (12,000 kilograms).... Article Skin In humans, skin is the biggest organ--an average adult's skin weighs as much as a gallon of milk. The skin of an adult Mamenchisaurus...

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Size and Scale Meet Mamenchisaurus Inside Mamenchisaurus Digging Up Sauropods The Future About the Exhibition Resources For Educators: The World's Largest Dinosaurs Collaborators