Silesaurs are definitely dinosauromorphs (close relatives of dinosaurs) but were they true dinosaurs?

For links to every news story, all of the details we shared about Planicoxa, and our fun fact check out https://iknowdino.com/Planicoxa-Episode-545/

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Dinosaur of the day Planicoxa, an iguanodont known from its flat hips with a species name that means "poison".

In dinosaur news this week:

• There’s a new silesaurid, Itaguyra occulta, whose name means "Stone Bird" in Tupi—a language from Southern Brazil where it was found
• A new large femur found in Zambia may have been from a 10ft (3m) long silesaur—quite large for the
• Probable silesaur arm and leg bones from the Late Triassic were described from what is now Texas

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

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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

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We saw Jurassic World Rebirth on opening day, but haven't discussed it with each other yet. We share all our favorite moments, dinosaurs, and theories about the movie.

For all of our fun facts and other details go to https://iknowdino.com/-Episode-543/

In this episode, we break down the horror-infused tone of Jurassic World: Rebirth, from malfunctioning park systems to scary Mosasaurus sequences. We explore standout scenes like Bronto Billy’s first appearance in NYC, the Quetzalcoatlus and Spinosaurus teaming up with the Mosasaur. We give our thoughts on the all new cast including Scarlett Johansson (Zora Bennett), Mahershala Ali (Duncan Kincaid), Jonathan Bailey (Dr. Henry Loomis), and other minor characters.

We also dive into updated animal portrayals—like the adorable backpack-sized Aquilops named Dolores, the eerie hybrid Mutadon, and the menacing Distortus rex—along with practical effects and callbacks to earlier films. Finally, we debate what worked, what didn’t, favorite dinos, and lingering questions about the sequel’s direction.

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.