The Tanis site is one of the most important paleo sites in North America, showing details of the exact day when the Cretaceous ended. Plus two new cute dinosaurs.

For links to every news story, all of the details we shared about Silvisaurus, links from Rob Sula, and our fun fact check out https://iknowdino.com/Silvisaurus-Episode-564/

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

Dinosaur of the day Silvisaurus, an ankylosaur with a pear-shaped skull.

Interview with Rob Sula, the Senior field supervisor for Paleo Prospectors. He's a field paleontologist, teacher, and artist with decades of experience hunting and excavating dinosaurs and has co-discovered some very important fossil sites. He was also recently featured in the documentary Why Dinosaurs?

In dinosaur news this week:

• Dr. Hans Sues has ascended to paleo legend status
• There’s a new cute ornithopod, Foskeia pelendonum
• There’s another new, possibly even cuter dinosaur, the thescelosaurid ornithischian Doolysaurus huhmini

Tell us what you think about our show in our 2026 IKD Survey! We want our show to be as enjoyable as possible, and your input will help us improve. Head to bit.ly/ikdsurvey26 to help shape the future of I Know Dino!

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

Lots of new discoveries of soft tissues in dinosaurs. Plus new studies to confirm old soft tissues and a new—controversial—iguanodont.

For links to every news story, all of the details we shared about Santanaraptor, and our fun fact check out https://iknowdino.com/Santanaraptor-Episode-563/

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

Dinosaur of the day Santanaraptor, a small theropod found with soft tissue.

In dinosaur news this week:

• There’s a potentially new iguanodont, Paulodon galvensis (but it is controversial)
• Soft tissues can be preserved in fossils regardless of the species, age of the bones, or where the animal was buried
• A new method using Cross-polarized light microscopy (XPol) helps identify organic molecules in fossils
• New Edmontosaurus "mummies" show hooves, small spikes down the tail, and a banded fleshy crest over the neck and back
• Scientists re-evaluated the soft tissue crest of an edmontosaur hadrosaur dinosaur
• Dinosaurs likely had muscles forming cheeks
• New titanosaur sauropod tracks found in Mongolia show a lot of soft tissue details in the hands and feet

Tell us what you think about our show in our 2026 IKD Survey! We want our show to be as enjoyable as possible, and your input will help us improve. Head to bit.ly/ikdsurvey26 to help shape the future of I Know Dino!

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

A new troodontid with a skull like a pachycephalosaur, two new prehistoric birds, the bird evolutionary tree, how birds developed the ability to fly, how we know Microraptor turned out to be a decent flier, and a mathematical rule that shapes theropod faces

For links to every news story, all of the details we shared about Archaeopteryx , and our fun fact check out https://iknowdino.com/Archaeopteryx -Episode-562/

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

Dinosaur of the day Archaeopteryx , the "ancient wing" dinosaur that was originally named for just a single feather, but is now known from over a dozen individuals.

In dinosaur news this week:

• A new troodontid theropod, Xenovenator espinosai, has an extremely thick skull—like a pachycephalosaur
• Scientists have created a complete evolutionary tree of all birds (over 9,000 species)
• There’s a new neoavian Aequornithes bird from Antarctica, Pujatopouli soberana
• There is a new euornithean bird, Kunpengornis anhuimusei, that has gut contents!
• How the structure of feathers in the Cretaceous tells us about their evolution
• The specialization of a small wrist bone, the pisiform, helps birds to fly
• A key wing muscle that helps birds fly appears to have evolved by fusing cells from multiple muscles
• How often birds, bats, and insects flap when flying may be related to a built in constraint related to the vortex their wings generate with each flap
• More Microraptor specimens (with soft tissues!) show it was a decent flier
• A set of raptor dinosaur tracks indirectly shows it used its arms to help it run faster
• Just because a theropod dinosaur had short arms and not many fingers, doesn’t mean their hands and arms were useless
• Birds have a special organ to help them balance (which doesn't seem to matter as much for flight)
• Birds have been nesting in the Arctic for at least 73 million years
• How theropod dinosaur (non-avian and bird) faces are shaped may have followed a mathematical rule
• A study of the Chicago Archaeopteryx found that could definitely fly
• Birds need a lot of calories to fly, and Archaeopteryx, the oldest known bird, has three features modern birds also have to eat efficiently

This episode is brought to you by the Colorado Northwestern Community College. Join them for two weeks digging up dinosaur bones in the field, preparing fossils in their lab, or in their new field geology program. For details go to CNCC.edu/paleo26

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