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/

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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.

Plus a duck-billed dinosaur with a strong jaw and a couple of small dinosaurs from the the U.S. and Europe

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

In dinosaur news this week:

• A New Jurassic neornithischian dinosaur with a Voice Box. Pulaosaurus qinglong, from China’s Tiaojishan Formation, has only the second larynx ever found preserved with a non-avian dinosaur. Source
• The small ornithischian Enigmacursor mollyborthwickae was found in the Morrison Formation of Colorado. Reminding us that it wasn't just huge sauropods and stegosaurs eating plants in the Late Jurassic. Source
• A new ornithopod named Obelignathus septimanicus was identified from a stronger jawbone than other Late Cretaceous ornithopods (like Rhabdodon) in what is now southern France. It's name refers to the French comic character Obelix who has superhuman strength (like the "unusually robustly-built" jawbone on Obelignathus). Source
• An Early Cretaceous basal hadrosauroid, Cariocecus bocagei, was named from Portugal. It had a fused upper jaw and cheekbone, possibly letting it chew tougher plants than its relatives. Source

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.

Plus a new alvarezsaurid theropod, Manipulonyx; A huge bonebed in Romania; new dinosaur fossils found at Dinosaur National Monument; and our first Dino Duels winners

For links to every news story, all of the details we shared about Inosaurus, links from Mark Witton, and our fun fact check out https://iknowdino.com/Inosaurus-Episode-561/

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

Dinosaur of the day Inosaurus, a dubious theropod known from vertebrae and a piece of its shin.

Interview with Mark Witton, a paleontologist, author, and artist, known for his research on pterosaurs and his work with museums, universities, and shows including Walking with Dinosaurs, Planet Dinosaur, Prehistoric Planet, and the IMAX film T. rex. He also has published a number of books, including the recently published King Tyrant. Follow him on bluesky and patreon @markwitton

In dinosaur news this week:

• There’s a new alvarezsaurid theropod, Manipulonyx reshetovi
• Paleontologists have found thousands of fossils in a bonebed in Romania (Hateg Basin), including bones from titanosaurs and rhabdodontids
• New dinosaur fossils have been found at Dinosaur National Monument

This episode is sponsored by Squarespace, go to https://www.squarespace.com/IKD to save 10% off your first purchase of a website or domain using code IKD

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.