A simple guide to dinosaur classification

This image is a collaboration between me and EWilloughby.  She and I recently noticed that a lot of people seemed confused about the distinctions between various groups of dinosaurs, so we created this as a simple guide to it.  The images are by her, while I created the layout and wrote all of the text.

There are a few dinosaurs that don't fit into any of these groups, such as Eoraptor, which is a primitive saurischian dinosaur that might have not been either a theropod or a sauropodomorph.  But at least 95% of dinosaurs, and all of the best-known dinosaurs, fit into one of these groups.

A poster of this chart is for sale at Zazzle: www.zazzle.com/dinosaur_classi…