Uriash kadici and Petrustitan hungaricus lived on Hateg island and would have had to deal with the murder giraffe—Hatzegopteryx. Plus the "titan of salt" Chadititan. We also celebrate world metrology day with some dinosaur size comparisons.

For links to every news story, all of the details we shared about Eodromaeus, and our fun fact check out https://iknowdino.com/Eodromaeus-Episode-540/

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Dinosaur of the day Eodromaeus, the aptly named "dawn runner".

In dinosaur news this week:

• There are two new titanosaur dinosaurs from Hateg Island: Uriash kadici (the largest known from the island) and Petrustitan hungaricus (formerly lumped with Magyarosaurus)
• There’s another new titanosaur dinosaur, Chadititan calvoi, from Patagonia that was very small for a titanosaur

This episode is brought to you by Sauros: the dino trick-taking puzzle game! Featuring beautiful mahjong-like tiles, paleoart-covered playmats, and custom dice and tokens. Get yours for just $40 at Kickstarter now!

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We have loved Franco's art longer than we knew the term "paleoart". He joins to explain his process of illustrating for books–including ours. Plus a new sauropodomorph with a big head named Lishulong wangi.

For links to every news story, all of the details we shared about Chilantaisaurus, and our fun fact check out https://iknowdino.com/Chilantaisaurus-Episode-539/

Dinosaur of the day Chilantaisaurus, an very large theropod with impressive claws.

In dinosaur news this week:

• There’s a new sauropodomorph dinosaur, Lishulong wangi, and it had a large skull

Over two decades, Franco has illustrated more than 50 books on dinosaurs and prehistoric mammals for major publishers worldwide. His piece “T. rex couple vs. Dakotaraptor pack” won the 2016 John J. Lanzendorf-National Geographic PaleoArt Prize. He compares the scene to lions defending a kill from hyenas, highlighting the possible social dynamics between top predators and opportunistic rivals. Check out his illustrations and the text of the interview here: iknowdino.com/franco-tempesta-on-bringing-dinosaurs-to-life-through-art/

Our new book I Know Dino!: Amazing Breakthroughs, Mega Mistakes, and Unsolved Mysteries in Dinosaur Science is available now! Get the most up-to-date facts and paleoart of many of the most striking dinosaurs at bit.ly/iknowdinobook or sign up at the Tyrannosaurus level or above by May 31, 2025 at patreon.com/iknowdino to get an autographed copy from us!

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We bring back our fan-favorite segment: Dinosaurs on Trial! Patrons submitted dinosaur “crimes,” and we argue the cases like whether or not compsognathids are misidentified juvenile theropods. Plus a new ornithomimid from Uzbekistan named Dzharacursor.

For links to every news story, all of the details we shared about Nurosaurus, and our fun fact check out https://iknowdino.com/Nurosaurus-Episode-538/

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

Dinosaur of the day Nurosaurus, an informally named sauropod with a stress fracture in its toe.

In dinosaur news this week:

• There’s a new ornithomimid dinosaur, Dzharacursor bissektensis, that may contain medullary bone

For our Dinosaurs on Trial segment, patrons submitted dinosaur “crimes,” and we argue the cases:

• Did Ankylosaurus cruelly attack a mother T. rex in Walking With Dinosaurs?
• Are compsognathids just mislabeled juvenile theropods?
• Did T. rex throw the fight against Spinosaurus in Jurassic Park 3?
• Did T. rex really hunt with F-14s?
• Was Oviraptor a misunderstood parent or an egg thief?

Vote on our Patreon to decide who’s guilty! patreon.com/iknowdino

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Interview with Tone Blakesley, who recently described 131 dinosaur footprints on the Isle of Skye, Scotland. The tracks include those made by Megalosaurus and Cetiosaurus (or close relatives) and Tone made an accompanying documentary for the paper.

For links to every news story, all of the details we shared about Ornithodesmus, links from Tone Blakesley, and our fun fact check out https://iknowdino.com/Ornithodesmus-Episode-537/

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Dinosaur of the day Ornithodesmus, a dinosaur that was first thought to be a bird based on its hip bones (sacrum) and later considered to be a pterosaur.

Interview with Tone Blakesley, a Master's graduate University of Edinburgh and lead author of a new paper about 131 dinosaur footprints on the Isle of Skye in Scotland

In dinosaur news this week:

• Tone Blakesley's new paper describing a Middle Jurassic lagoon preserved in modern day Scotland
• The documentary of the tracks that Tone made to accompany the paper

This episode is brought to you by the Colorado Northwestern Community College. Join them for two weeks digging up dinosaur bones from the Jurassic Period in Northwest Colorado this summer. For details go to CNCC.edu/dinodig

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Yuanmouraptor wasn't a raptor or a megaraptorid, but it did have two foot long jaws full of sharp, serrated, teeth. Plus a "noble" tyrannosauroid, Kileskus, that had a long crest down its head and lived about 100 million years before T. rex.

For links to every news story, all of the details we shared about Kileskus, and our fun fact check out https://iknowdino.com/Kileskus-Episode-536/

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Dinosaur of the day Kileskus, one of the oldest known tyrannosauroids. It lived in the Middle Jurassic of what is now Siberia.

In dinosaur news this week:

• There’s a new carnivorous metriacanthosaurid dinosaur, Yuanmouraptor jinshajiangensis

This episode is brought to you by the Colorado Northwestern Community College. Join them for two weeks digging up dinosaur bones from the Jurassic Period in Northwest Colorado this summer. For details go to CNCC.edu/dinodig

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Duonychus tsogtbaatari was found in what is now Mongolia with strong evidence that it only had two fingers on each hand. Plus the Jurassic World: Rebirth trailer, Walking with Dinosaurs is coming back, and more.

For links to every news story, all of the details we shared about Sinovenator, and our fun fact check out https://iknowdino.com/Sinovenator-Episode-535/

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Dinosaur of the day Sinovenator, a common troodontid, one of which was found curled up in a sleeping posture similar to Mei long.

In dinosaur news this week:

• There’s a new therizinosaur with just two large claws per hand, Duonychus tsogtbaatari
• There’s a trailer for Jurassic World: Rebirth
• BBC’s Walking with Dinosaurs revival is coming out later this year
• There’s a new dinosaur horror comedy, called The Invisible Raptor
• Petition to save "Tyra" the "world's largest dinosaur" in Drumheller
• Petition to make T. rex the U.S. national fossil

This episode is brought to you by the Colorado Northwestern Community College. Join them for two weeks digging up dinosaur bones from the Jurassic Period in Northwest Colorado this summer. For details go to CNCC.edu/dinodig

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Tameryraptor markgrafi is a significant dinosaur that was named by an even more significant paleontologist. But only photos and a braincase of it remain.

For links to every news story, all of the details we shared about Dakotadon, and our fun fact check out https://iknowdino.com/Dakotadon-Episode-534/

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

Dinosaur of the day Dakotadon, an ornithopod that was originally pronounced the "first species from the United States that can be clearly referred to the European genus Iguanodon".

In dinosaur news this week:

• The newly named Tameryraptor is such a significant find that it could be considered the original Carcharodontosaurus

This episode is brought to you by the Colorado Northwestern Community College. Join them for two weeks digging up dinosaur bones from the Jurassic Period in Northwest Colorado this summer. For details go to CNCC.edu/dinodig

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Archaeocursor may have been named after an April Fool's Joke, but it was a real dinosaur.

For links to every news story, all of the details we shared about Earl Sinclair, and our fun fact check out https://iknowdino.com/Earl Sinclair-Episode-533/

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

Dinosaurs of the day: Earl Sinclair, Godzilla, & Cryptids.

In dinosaur news this week:

• There is a Shady dinosaur, and it's a Triceratops
• A Stegosaurus just sold for over 13 million dollars using shares as a sort of "investment"
• An Apatosaurus sold in Europe for about 6 million Euros
• Archaeocursor asiaticus is the oldest known ornithischian from Asia
• A 47 gram (1.7 ounce) enantiornithine bird was described with "robust teeth" and feather traces
• The "short pubis" enantiornithean bird, Novavis pubisculata, was named from the Early Cretaceous of China
• Navaornis hestiae was named after the Greek goddess Hestia, the oldest and youngest Olympian (Navaornis is an old bird with a modern looking skull)
• Baminornis zhenghensis may be the first bird to ever evolve a pygostyle (to support tail feathers)
• A new Archaeopteryx specimen was described (making it the 14th of all time)

This episode is brought to you by the Colorado Northwestern Community College. Join them for two weeks digging up dinosaur bones from the Jurassic Period in Northwest Colorado this summer. For details go to CNCC.edu/dinodig

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A pair of Yuanyanglong were found together in the summer of 2021 after fossilizing together for 100 million years. Plus our Dino Duels continue

For links to every news story, all of the details we shared about Phuwiangosaurus, and our fun fact check out https://iknowdino.com/Phuwiangosaurus-Episode-532/

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

Dinosaur of the day Phuwiangosaurus, the first sauropod named from Thailand.

In dinosaur news this week:

• There’s a new oviraptorosaurian dinosaur, Yuanyanglong bainian, the "lovebird dragon"

This episode is brought to you by the Colorado Northwestern Community College. Join them for two weeks digging up dinosaur bones from the Jurassic Period in Northwest Colorado this summer. For details go to CNCC.edu/dinodig

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The sauropodomorph Ahvaytum is several million years older than any previously known dinosaur from Laurasia. And there are some even older tracks. Plus the results of the sweet sixteen round of our dino duels bracket.

For links to every news story, links to our new book, and our fun fact check out https://iknowdino.com/200_years_of_dinosaurs-Episode-531/

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200 years of dinosaurs, our book titled I Know Dino! will be published soon with National Geographic Kids! Pre-order your copy at https://bit.ly/ikdbook2025 if you tell us you ordered it at https://bit.ly/iorderedthebook we'll send you an addendum with a dozen more dinosaurs we had to cut from the book.

In dinosaur news this week:

• A new sauropodomorph shows that dinosaurs were living in the northern hemisphere way earlier than previously thought

This episode is brought to you by the Colorado Northwestern Community College. Join them for two weeks digging up dinosaur bones from the Jurassic Period in Northwest Colorado this summer. For details go to 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.