5 ‘Dinosaurs’ That Aren’t Actually Dinosaurs

Did you know that some prehistoric animals have been mis-categorized as dinosaurs? Join us for a new episode of SciShow, and learn about the definition of ‘true dinosaurs’ and the evolutionary relationships shared by the non-dino reptiles that lived back then.

If you liked this video, check out more videos about natural history and paleontology on SciShow’s sister channel, Eons: https://www.youtube.com/eons
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Sources:
http://pubs.usgs.gov/gip/dinosaurs/all.html
http://www.ucmp.berkeley.edu/diapsids/pterosauria.html
http://plesiosauria.com/evolution.php
http://www.ucmp.berkeley.edu/diapsids/ichthyosauria.html
http://www.wisegeek.com/what-are-mosasaurs.htm
http://history.nd.gov/activities/MosasaurFunFacts.pdf
http://www.ucmp.berkeley.edu/taxa/verts/diapsida.php
Pterosaur origins – where did they come from?
http://www.sciencedaily.com/releases/2012/04/120417221713.htm
http://biology.fullerton.edu/biol325/phylo/im/handout1.gif