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…