08-18-2018, 03:40 PM
|
 |
Senior Member
|
|
Join Date: Mar 2017
Location: ABQ, New Mexico
Posts: 36,633
Thanks: 3,506
Thanked 136,556 Times in 22,784 Posts
|
|
Though mosasaurs, ichthyosaurs, pterosaurs, plesiosaurs, and dimetrodon are commonly believed to be dinosaurs, they are not technically dinosaurs. The term “dinosaur” refers to just land-dwelling reptiles that have a specific hip structure, among other traits
|