Huaxiazhoulong is one of the most complete ankylosaurs ever found (except for the head). Plus "Apex" the extremely expensive Stegosaurus is now on public display.

For links to every news story, all of the details we shared about Pawpawsaurus, and our fun fact check out https://iknowdino.com/Pawpawsaurus-Episode-530/

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Dinosaur of the day Pawpawsaurus, an ankylosaur with a well preserved skull which preserved the first nodosaurid eyelids.

In dinosaur news this week:

• The most expensive dinosaur ever sold at auction, the Stegosaurus "Apex", is now on display at the American Museum of Natural History.
• The new ankylosaur, Huaxiazhoulong shouwen, is nearly complete (from the shoulders back).

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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Happy March! We're celebrating with a friendly Dino Duels Competition. Fill out a bracket to predict which dinosaur will win their matchups and you could win a prize!

For links to every news story, all of the details we shared about Cumnoria, and our fun fact check out https://iknowdino.com/Cumnoria-Episode-529/

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

Dinosaur of the day Cumnoria, another dinosaur that was considered to be Camptosaurus for a while.

Here are the steps to enter the Dino Duels Competition:

• Check out our interactive Dinosaur Bracket at bit.ly/dinoduelsbracket and predict the dinosaur champions
• Then copy over your picks and submit them in the Google Form by March 11, 2025 at bit.ly/dinoduelspicks
• Go to bit.ly/dinoduelsrules for all the rules for the Dino Duels Competition

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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Dinosaurs had a complex relationship with fungi and plants. We explore whether dinosaurs ate psychedelics, if they aided plant evolution, and even a carnivorous fungus.

For links to the main sources, all of the details we shared about Jeholornis, and our fun fact check out https://iknowdino.com/Jeholornis-Episode-528/

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

Dinosaur of the day Jeholornis, the first known bird to eat fruit.

Some of the main topics in this episode:

• The psychotropic fungus ergot in the Cretaceous
• Fungi in dinosaurian (Isisaurus) coprolites
• Dinosaurs feeding on flowering plants
• Dinosaur—angiosperm coevolution revisited
• "Hunting the Snark: the flawed search for mythical Jurassic angiosperms"
• Angiosperm evolution using phylogenomics
• Possible pre-Cretaceous origin of flowering plants
• Ancient pollen that may be from angiosperms
• How the end-Cretaceous extinction led to modern rainforests
• How plants fared after the end-Cretaceous mass extinction

Last chance to Join our patreon at the Triceratops tier or above (by midnight on Friday, February 28, 2025) to get your exclusive Allosaurus patch. If you're already a patron at the Triceratops level or above make sure to update your address so we can send it to you! patreon.com/iknowdino

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Zofia led several expeditions to Mongolia where her team discovered hundreds of mammals and dinosaurs including Deinocheirus and the Fighting Dinosaurs (a velociraptor and Protoceratops who appear to have fossilized in the middle of a fight to the death).

For links to every news story, all of the details we shared about Deinocheirus (revisited), and our fun fact check out https://iknowdino.com/Deinocheirus (revisited)-Episode-527/

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

Dinosaur of the day Deinocheirus (revisited), a dinosaur that was once considered fearsome, but now more goofy. It's a unique herbivorous theropod with enormous arms and claws.

Two great books written by Zofia:

• In Pursuit of Early Mammals
• Hunting for dinosaurs

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The "thunder lizard" may be the most well-known sauropod. It has been regularly featured in movies for over a century and would have been an awesome sight to behold in the Jurassic.

For links to every news story, all of the details we shared about Astrophocaudia, and our fun fact check out https://iknowdino.com/Astrophocaudia-Episode-526/

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

Dinosaur of the day Astrophocaudia, a roughly 20 ton sauropod that lived in the Early Cretaceous alongside Sauroposeidon.

We're celebrating 10 years of podcasting by sending out Allosaurus patches! Join our patreon at the Triceratops tier or above by the end of February 2025 to get the exclusive Allosaurus patch. If you're already a patron at the Triceratops level or above make sure to update your address so we can send it to you! patreon.com/iknowdino

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Dean Lomax joins to discuss Ichthyotitan, the largest known reptile of all time which he recently described. Plus the Rutland Sea Dragon, Executive Producing Why Dinosaurs?, and more.

For a photo of us with Dean Lomax, all of the details we shared about Aristosuchus, and our fun fact check out https://iknowdino.com/Aristosuchus-Episode-525/

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

Dinosaur of the day Aristosuchus, a small (likely fuzzy) dinosaur that lived in the Early Cretaceous in what is now England.

Interview with Dean Lomax, an award-winning paleontologist, author, and presenter, as well as Honorary Research Fellow at The University of Manchester & 1851 fellow at the University of Bristol. He’s the leading authority on ichthyosaurs, and he also excavates and researches dinosaurs. Check him out on Instagram @Dean_R_Lomax or Facebook or twitter or on his website at deanrlomax.co.uk

Some of the things we discuss with Dean Lomax this week:

• His upcoming work on the Rutland sea dragon
• Ichthyotitan, which is possibly the largest marine reptile to ever swim the earth
• Executive Producing the Why Dinosaurs? Documentary

We're celebrating 10 years of podcasting by sending out Allosaurus patches! Join our patreon at the Triceratops tier or above by the end of February 2025 to get the exclusive Allosaurus patch. If you're already a patron at the Triceratops level or above make sure to update your address so we can send it to you! patreon.com/iknowdino

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The current evidence for dinosaur mating displays, reproduction, walking, and running. Featuring chickens with artificial tails!

For links about dinosaur dancing, all of the details we shared about Valdosaurus, and our fun fact check out https://iknowdino.com/Valdosaurus-Episode-524/

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

Dinosaur of the day Valdosaurus, an iguanodont that lived in the Early Cretaceous.

Some of the topics we discuss in this episode are:

• "Display arenas" showing potential courtship ceremonies in Cretaceous rock
• Two oviraptorosaur tails that may show differences between males and females (males with tail-shaking muscles)
• Dinosaur "dance floor" of tracks that seem to show stopping and crouching behaviors
• A simulation of the enormous sauropod Argentinosaurus walking

We're celebrating 10 years of podcasting by sending out Allosaurus patches! Join our patreon at the Triceratops tier or above by the end of February 2025 to get the exclusive Allosaurus patch. If you're already a patron at the Triceratops level or above make sure to update your address so we can send it to you! patreon.com/iknowdino

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A huge year for stegosaurs and theropods!

For links to every news story, all of the details we shared about Yinlong, and our fun fact check out https://iknowdino.com/Yinlong-Episode-523/

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

Dinosaur of the day Yinlong, one of the earliest known ceratopsians.

Our top stories of 2024:

• Best new tyrannosaur: Asiatyrannus
• Best new tyrannosaur (runner up): Tyrannosaurus mcraeensis
• Best new titanosaur: Bustingorrytitan
• Best new titanosaur (runner up): Qunkasaura
• Best new ankylosaur: Datai
• Best new abelisaur: Koleken
• Best new ceratopsian: Lokiceratops
• Best new (maybe) burrowing dinosaur: Fona
• Best new ornithopod (most complete found in UK in 100 years): Comptonatus
• Best new theropod brow: Alpkarakush
• Best sauropod vertebra (and best rebbachisaurid): Sidersaura
• Best new rebbachisaurid (runner up): Campananeyen
• Best noasaurid theropod: Kiyacursor
• Best new caenagnathid: Eoneophron
• Best new sleeping dinosaur: Hypnovenator
• Most basal rhabdodontomorph ornithopod: Emiliasaura
• Best new silesaurid: Gondwanax
• Most expanded dinosaur group: Stegosauria. Including: Thyreosaurus, Baiyinosaurus, Angustungui, & Yanbeilong
• Coolest discovery story: Musankwa
• Most tenacious fossil: Ardetosaurus
• Most exciting new Mesozoic bird: Shuilingornis
• Best bird names: Avisaurus ("bird lizard") and Magnusavis ("big bird")
• Fastest name change: "Jingjia" renamed Jingiella
• Garret's favorite Dinosaur Connection Challenge: bubonic plague
• Best paleopathology study: South American theropods
• Best paleopathology study (runner up): Plateosaurus
• Oldest known paleontology (maybe): 10,000 year old petroglyphs
• Best friendly sauropodomorph study: Lufengosaurus
• Best new spinosaurid: Riojavenatrix
• Spinosaur diving and hunting/swimming update
• Spinosaur skull shapes
• Spinosaurs had skull and teeth to go after large prey
• Best new tyrannosaur paper: Gorgosaurus gut contents
• Nanotyrannus update
• T. rex intelligence estimation

Our 2024 Holiday Gift Guide is available now! Find the perfect gift for the dinosaur enthusiast in your life (or yourself). This year's guide features real dinosaur teeth, a color your own dinosaur postcard book, dinosaur collectibles, toys, and more! Head to iknowdino.com/the-ultimate-dinosaur-holiday-gift-guide/ to see the full list of gift ideas.

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