The horned dinosaurs; typified by enormous bony frill extending back over neck from posterior part of skull; usually with median horns in nasal region and paired horns behind eyes; evolved during the Upper Cretaceous period. (Order: Ornithischia.)
|
iCeratopsia Fossil range: Jurassic - Cretaceous |
|---|
|
Triceratops skull |
| Conservation status |
Please include a link to this page if you have found this material useful for research or writing a related article. Content on this website is from high-quality, licensed material originally published in print form. You can always be sure you're reading unbiased, factual, and accurate information.
Highlight the text below, right-click, and select “copy”. Paste the link into your website, email, or any other HTML document.
User Comments Add a comment…