Two new species, Zhongyuansaurus junchangi and Tianzhenosaurus chengi. How paleontologists use details in the ankylosaur armor to identify the species. Plus, the first ever ankylosaurid (tail club-wielding ankylosaur) footprint.

For links to every news story, all of the details we shared about Mojoceratops, and our fun fact check out https://iknowdino.com/Mojoceratops-Episode-544/

Join us at www.patreon.com/iknowdino for dinosaur requests, bonus content, ad-free episodes, and more.

Dinosaur of the day Mojoceratops, a ceratopsian that got its mojo from its frill.

In dinosaur news this week:

• A new ankylosaur, Zhongyuansaurus junchangi, with "swallowtail" shaped tail armor
• A good overview of how osteoderm patterns vary between different ankylosaur species
• The best way to distinguish ankylosaur species is probably by comparing skulls
• A new ankylosaur skull led to another new ankylosaur species being named: Tianzhenosaurus chengi
• New ankylosaur fossils were excavated in Argentina, a rare find for South America
• Osteoderms may have helped dinosaurs live in arctic conditions

Our Styracosaurus patch is back for a limited time! Join our patreon at the Silesaurus tier or above by the end of August 2025 to get the exclusive patch. You’ll also get a 30 days of dinosaurs PDF booklet, ebooks, shoutouts, I Know Paleo episodes, and a portion of the proceeds will go to charities supporting paleontology. If you're already a patron at the make sure to update your address so we can send you the patch! patreon.com/iknowdino

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.