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The 8 Oldest Animal Species on Earth

By Steven Romano Nov 21, 2013

2 of 9

Tuatara

At face value the tuatara may not seem remarkable, resembling any other lizard out there. But unlike its scaly brethren, tuataras are prehistoric marvels—having been around since the Early Cretaceous Period (no doubt scurrying around the feet of dinosaurs such as Carnotaurus or Deinonychus). As such, scientists believe the tuatara is the evolutionary key to further understanding ancient diapsids: A group comprising reptiles, dinosaurs, and birds.

Tags: animals, science, jellyfish, slideshows, lizards, earth

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About the Author
Steven Romano

Like Captain America, Steven Romano is just a boy from Brooklyn. When he isn't contributing to The MindHut and other geeky websites, Steven's hard at work writing his first novel and comic book scripts. Follow him on Twitter @Steven_Romano, and swing by his blog: stevenromano.tumblr.com

Wanna contact a writer or editor? Email contribute@sparknotes.com.