How we can tell dinosaur brain size and shape from their skulls; Evidence from the brain of Thescelosaurus shows it may have burrowed; Plus an update on Ornithoscelida

For links to every news story, all of the details we shared about Dracovenator, and our fun fact check out https://iknowdino.com/Dracovenator-Episode-492/

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Dinosaur of the day Dracovenator, a close relative of Dilophosaurus from the Jurassic of South Africa.

In dinosaur news this week:

• Brain size varied in dinosaurs
• Turns out, the dinosaur Thescelosaurus had a powerful sense of smell, a sensitive vestibular system, but terrible hearing—all which may mean it was a burrower
• A new hiking trail with 134 sauropod dinosaur footprints is now open to the public in Colorado, according to The Denver Gazette
• The Jean & Ric Edelman Fossil Park is opening in June in New Jersey

Listener Questions:

• What would a real "modern tyrannosaur" look like?
• Update on the Ornithoscelida debate (where theropods and ornithischians are grouped together). We also explain Saurischia (sauropods + theropods) and Phytodinosauria/Ornithischiformes (sauropods + ornithischians).

Fun Fact: According to the Dinosaur Heresies, pterosaurs are dinosaurs.

Thank you to our Sponsors!

You can dig up real dinosaur bones this summer with Colorado Northwestern Community College! Join them for a two week immersive field paleontology experience digging up dinosaur bones from the Jurassic period in Northwest Colorado. There are two scheduled digs: July 6–July 20 and July 22–August 5. There are also two concurrent immersive lab techniques programs available. Get all the details and register online at cncc.edu/dinodig

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a new titanosaur from central Patagonia that lived alongside Carnotaurus; "Jingia" is now Jingiella; Two new studies help show why dinosaurs took over the Jurassic world

For links to every news story, all of the details we shared about Limusaurus, and our fun fact check out https://iknowdino.com/Limusaurus-Episode-491/

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Dinosaur of the day Limusaurus, a fascinating dinosaur that started out with over 40 teeth, but had their teeth completely replaced by a beak by the time they turned one.

In dinosaur news this week:

• A new Patagonian titanosaur, Titanomachya gimenezi, was named after an epic battle of the Greek gods
• The mamenchisaurid sauropod “Jingia” dongxingensis has been renamed to Jingiella dongxingensis
• Having a wide variety of limb proportions and gaits helped dinosaurs become a success
• Early dinosaurs grew fast, and that was a good thing for them, but they weren't the only ones to grow quickly

This episode is brought to you by Rosetta Stone - The all-in-one language app. With Rosetta Stone, you’ll have everything you need to learn a language and use it in the real world. They offer immersive lessons, writing prompts, and engaging activities to prepare you for real life conversations. You can pick and choose the lessons that work best for you and create a personalized experience that is both fun and engaging. Get ready for life's adventures with over 50% off for I Know Dino listeners at RosettaStone.com/dino

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Thyreosaurus was a stegosaur, but wore its armor like an ankylosaur; A new iguanodontian, Hesperonyx, was named from Portugal; and dinosaur of the day Eotyrannus, a large early tyrannosauroid

For links to every news story, all of the details we shared about Eotyrannus, and our fun fact check out https://iknowdino.com/Eotyrannus-Episode-490/

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Dinosaur of the day Eotyrannus, a tyrannosauroid from the Early Cretaceous which was surprisingly large for its time—aptly named the "dawn tyrant".

In dinosaur news this week:

• A new stegosaur, Thyreosaurus atlasicus, had large oval plates different than any other stegosaur
• A new iguanodontian, Hesperonyx martinhotomasorum, was found in Portugal
• Dinosaurs and concrete have a lot in common

This episode is brought to you by Rosetta Stone - The all-in-one language app. With Rosetta Stone, you’ll have everything you need to learn a language and use it in the real world. They offer immersive lessons, writing prompts, and engaging activities to prepare you for real life conversations. You can pick and choose the lessons that work best for you and create a personalized experience that is both fun and engaging. Get ready for life's adventures with over 50% off for I Know Dino listeners at RosettaStone.com/dino

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A new titanosaur from Uruguay is the most complete ever found in the country; Northern Alaska had even more dinosaur diversity than we thought; A site in Brazil shows dinosaur enthusiasts have been there for 1,000s of years

For links to every news story, all of the details we shared about Orkoraptor, links from Tito Aureliano and Aline Ghilardi, and our fun fact check out https://iknowdino.com/Orkoraptor-Episode-489/

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Dinosaur of the day Orkoraptor, a 20ft long megaraptorid from Argentina with specialized teeth for hunting.

Interview with Tito Aureliano and Aline Ghilardi, two amazing paleontologists from Brazil. Tito is a paleontologist, geologist, science communicator, and a postdoc at URCA university in Northeast Brazil. line Ghilardi, a scientist, science communicator, and professor of paleontology at UFRN.

In dinosaur news this week:

• A new titanosaur from Uruguay, Udelartitan celeste, is the most complete ever found in the country
• Alaska had a vibrant dinosaur community in the Cretaceous
• Paleontology and archaeology come together at a site in Brazil with petroglyphs and dinosaur footprints

This episode is brought to you by Rosetta Stone - The all-in-one language app. With Rosetta Stone, you’ll have everything you need to learn a language and use it in the real world. They offer immersive lessons, writing prompts, and engaging activities to prepare you for real life conversations. You can pick and choose the lessons that work best for you and create a personalized experience that is both fun and engaging. Get ready for life's adventures with over 50% off for I Know Dino listeners at RosettaStone.com/dino

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We have so many Microraptor specimens we know the color of their feathers, how they molted, what they ate, and much more. Plus a new hypothesis for why the first wings may have evolved. On a lighter note we cover some famous pop-culture dinosaurs: Rodan, Godzillasaurus, Ultimasaurus, and Toronto's Raptor mascot.

For links to every news story, all of the details we shared about Microraptor, and our fun fact check out https://iknowdino.com/Microraptor revisited-Episode-488/

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Dinosaur of the day Microraptor, a small 4 or 5 winged dinosaur that we first knew from just a tail, but now we even know what it ate.

In dinosaur news this week:

• Dinosaur feathers were a lot more like bird feathers than we thought
• Scientists have a new framework for figuring out if a dinosaur could fly
• A robotic Caudipteryx demonstrated how dinosaurs could have used their “half” wings to startle insects (and eat them)

This episode is brought to you by Rosetta Stone - The all-in-one language app. With Rosetta Stone, you’ll have everything you need to learn a language and use it in the real world. They offer immersive lessons, engaging activities, and even tutors to prepare you for real-life conversations. You can pick and choose what works best for you and create a personalized experience that is both fun and engaging. Get ready for life's adventures with 50% off for I Know Dino listeners at RosettaStone.com/dino

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Also, a nearly complete titanosaur was recently found! How long did it take for fossils in Australia to turn into opal? And how much do really exceptional fossil sites skew paleontological research?

For links to every news story, all of the details we shared about Zanclodon, and our fun fact check out https://iknowdino.com/Zanclodon-Episode-487/

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Dinosaur of the day Zanclodon, An archosauriform originally named "Smilodon" because of its dagger-like teeth (but that name was already taken by the saber-toothed cat).

In dinosaur news this week:

• There’s a new ornithopod, Chakisaurus nekul, which was much smaller than the titanosaurs that surrounded it in what is now Argentina
• A new dinosaur, Imparavis attenboroughi, is a rare toothless enantiornithine that also likely had very powerful wings
• A man out walking his dog found a nearly complete 70-million-year-old titanosaur
• Fossils at Lightning Ridge, Australia took their sweet time to opalize
• Really exceptional fossil sites (lagerstätten) are important, but they can influence our understanding of biodiversity and development on a global scale

You can dig up real dinosaur bones this summer with Colorado Northwestern Community College! Join them for a two week immersive field paleontology experience digging up dinosaur bones from the Jurassic period in Northwest Colorado. There are two scheduled digs: July 6–July 20 and July 22–August 5. There are also two concurrent immersive lab techniques programs available. Get all the details and register online at cncc.edu/dinodig

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Sauropods were the longest, tallest, and heaviest animals to ever walk the Earth. What adaptations did they have to get so large? And which dinosaurs were the largest in other groups?

For links to every news story, all of the details we shared about Uberabatitan, and our fun fact check out https://iknowdino.com/Uberabatitan-Episode-486/

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

Dinosaur of the day Uberabatitan, A giant titanosaur that may have had the largest teeth of any known sauropod.

In dinosaur news this week:

• Sauropods grew to be the largest land animals of all time with many special adaptations that helped them reach "super giant" sizes
• Bruhathkayosaurus may have been the heaviest land animal of all time with weight estimates from 80–190 tonnes
• Sauroposeidon may be the tallest sauropod (and land animal) of all time—with Giraffatitan proportions bringing it to about 17m (56ft) tall
• Sauropod babies were already built to grow large
• It's not just sauropods that had special adaptations to grow so large—Theropods had them too
• Early sauropod ancestors evolved very rapid growth before they evolved gigantic sizes
• A new study found 36 unique times that sauropods evolved gigantism
• A hadrosaur long thought to be an island dwarf turned out to just be young and was still growing

You can dig up real dinosaur bones this summer with Colorado Northwestern Community College! Join them for a two week immersive field paleontology experience digging up dinosaur bones from the Jurassic period in Northwest Colorado. There are two scheduled digs: July 6–July 20 and July 22–August 5. There are also two concurrent immersive lab techniques programs available. Get all the details and register online at cncc.edu/dinodig

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

New ankylosaur Datai yingliangis is already a contender for best ankylosaur of 2024; What's up with how ankylosaurs ate their food? Also, connection challenge with orthodontic braces; And a deep dive into a new animal found to have osteoderms.

For links to every news story, all of the details we shared about Avisaurus, and our fun fact check out https://iknowdino.com/Avisaurus-Episode-485/

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

Dinosaur of the day Avisaurus, The "bird lizard" which is one of the largest enantiornithines found to date.

In dinosaur news this week:

• New ankylosaur, Datai yingliangis, was described with a pair of horns at the back of its jaw
• Ankylosaurs were megaherbivores that evolved skulls and jaws to eat different foods from other herbivores

You can dig up real dinosaur bones this summer with Colorado Northwestern Community College! Join them for a two week immersive field paleontology experience digging up dinosaur bones from the Jurassic period in Northwest Colorado. There are two scheduled digs: July 6–July 20 and July 22–August 5. There are also two concurrent immersive lab techniques programs available. Get all the details and register online at cncc.edu/dinodig

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