New track sites, swim tracks, and mating dance arenas around the world tell us about the behavior of theropods, ceratopsians, and sauropods. Plus David Spira joins from Room Escape Artist to share his favorite dinosaur themed escape rooms.

For links to every news story, all of the details we shared about Segnosaurus, links from David Spira, and our fun fact check out https://iknowdino.com/Segnosaurus-Episode-558/

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Dinosaur of the day Segnosaurus, a therizinosaur with interesting teeth.

Interview with David Spira, co-creator of RoomEscapeArtist.com, which publishes well-researched, rational, and reasonably humorous escape room reviews, design tips, player tips, and industry commentary

In dinosaur news this week:

• The Science Museum of Minnesota closed for a day in response to the local ICE presence. If you want to support Minnesotans go to www.standwithminnesota.com/
• In Bolivia, there are almost 18,000 theropod dinosaur tracks that show evidence of running, sauntering, and swimming
• An earlier study of the Carreras Pampa site also found that the theropods feet sunk in the mud
• One set of footprints shows the fastest running theropod trackway in the Cretaceous
• Scientists re-examined the longest known theropod trackway in China
• Dinosaur Ridge, Colorado, has the largest known dinosaur mating dance arena
• Tracks from 76 million years ago may show that ceratopsians and ankylosaurs hung out together
• Paleontologists found a set of sauropod tracks that show it made a loop
• Scientists found multiple trackways in Oxfordshire, England, from mostly sauropods walking at a steady pace
• Theropod footprints were found in a crisscross pattern in Texas, U.S.
• Thousands of prosauropod footprints from the Triassic were found in a national park in Italy

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Robert (Bob) Nicholls has been painting, sculpting, and painting some of our favorite paleoart for decades. He joins us to share how he does it. Plus, a fossil found hundreds of feet below a natural history museum; The world's oldest cerapodan dinosaur; And new theropod and iguanodontian fossils

For links to every news story, all of the details we shared about Emausaurus, links from Bob Nicholls, and our fun fact check out https://iknowdino.com/Emausaurus-Episode-557/

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Dinosaur of the day Emausaurus, a very early armored dinosaur to rival Scutellosaurus and Scelidosaurus.

Interview with Bob Nicholls, world-renowned paleoartist, painter, sculptor, and illustrator. His work has been published in more than 40 books (including the Secret Lives of Dinosaurs) and exhibited in nearly 50 museums, universities, and attractions around the world. He’s also appeared on a number of shows and he designed coins for the Royal Mint. Follow him @BobNichollsart

In dinosaur news this week:

• Paleontologists found the world’s oldest cerapodan dinosaur in Morocco
• Scientists found a dinosaur bone underneath the parking lot of the Denver Museum of Nature and Science
• New theropods have been found at the St. George Dinosaur Discovery Site in Utah, U.S.
• There’s a new large iguanodontian dinosaur that lived in the Late Jurassic in what is now Portugal

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Two new dinosaurs from the middle of the Triassic: the theropod Anteavis and the sauropodomorph Huayracursor. Plus our reviews of several TV shows, movies, and books including Walking with Dinosaurs.

For links to every news story, all of the details we shared about Ornithopsis, and our fun fact check out https://iknowdino.com/Ornithopsis-Episode-556/

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Dinosaur of the day Ornithopsis, a titanosaur found way back in the 1830s which was named for its bone's similarity to the lightweight structure of a bird's skeleton.

In dinosaur news this week:

• We not yet have found the earliest dinosaur fossils, but they may be in the Amazon and areas by the equator in South America and Africa
• Dinosaurs may have originated in South America, and then moved simultaneously to the east and north
• There’s a new very early theropod dinosaur, Anteavis crurilongus
• A nearly complete skeleton from a Triassic sauropodomorph, Huayracursor jaguensis

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Spicomellus, Nanotyrannus, and tons of other fantastic new discoveries!

For links to every news story, all of the details we shared about Garudimimus, and our fun fact check out https://iknowdino.com/Garudimimus-Episode-555/

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Dinosaur of the day Garudimimus, an ornithomimosaur that wasn't that fast.

In dinosaur news this week:

• Smallest find to make a big impact: Ahvaytum (ep 531)
• HM: Archaeocursor (ep 533)
• HM: Itaguyra (ep 545)
• HM: Maleriraptor (ep 550)
• HM: Taleta (ep 553)
• Most surprising new dinosaur: Nanotyrannus lethaeus (ep 554)
• Best new therizinosaur: Duonychus (ep 535)
• Best new pachycephalosaur: Zavacephale (ep 553)
• HM: Brontotholus (ep 553)
• Best new ornithomimid: Mexidracon (ep 551)
• Best new basal neornithischian: Pulaosaurus (DD 7)
• Best new ankylosaurid genus: Huaxiazhoulong (ep 530)
• Best new dromaeosaur: Shri rapax (DD8)
• Best new compsognathid*: Huadanosaurus (ep 541)
• Best new iguanodontian: Istiorachis (ep 548)
• Best new megaraptor: Joaquinraptor (ep 552)
• Best new basal sauropodomorph: Xingxiulong yueorum (ep 549)
• HM: Lishulong (ep 539)
• Best new enantiornithine: Navaornis (ep 533)
• New genus hiding for the longest in plain sight: Newtonsaurus (DD8)
• HM: Tameryraptor (ep 534)
• Best new basal allosauroid: Yuanmouraptor (ep 536)
• Best new oviraptorosaur: Yuanyanglong (ep 532)

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Two separate groups of researchers have independently confirmed that Nanotyrannus is its own genus and not just a juvenile T. rex. Plus a new Nanotyrannus species and another new tyrannosauroid and tyrannosaur injuries.

For links to every news story, all of the details we shared about Calamosaurus, and our fun fact check out https://iknowdino.com/Calamosaurus-Episode-554/

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Dinosaur of the day Calamosaurus, a small theropod that’s been mixed up with lots of other theropods.

In dinosaur news this week:

• A new complete Nanotyrannus skeleton confirms that it deserves its own genus and is not just a juvenile Tyrannosaurus rex
• A close analysis of the small throat (hyoid) bone from the Nanotyrannus holotype confirms it was nearly full-sized
• Review of the taxonomic history of Nanotyrannus
• There’s a new Late Cretaceous tyrannosauroid, Khankhuuluu mongoliensis, related to the fluffy Yutyrannus
• Scotty the T. rex appears to have blood vessel structures in a rib showing how it healed. (in the fun fact)
• Companies are claiming to make luxury fashion items out of T. rex leather but that’s not currently possible. (in the fun fact)

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Zofia Kielan-Jaworowska was a Polish scientist and the first woman to lead a dinosaur excavation expedition. On her explorations of the Gobi Desert, she discovered many famous animals, including Deinocheirus—a dinosaur that, for decades, was known only by its enormous, terrifying arms & claws. But when we finally found the rest of its body, it turned out to look more like Jar Jar Binks. This is the story of Zofia, and the dinosaur that surprised us all - as told originally aired on the History Dispatches podcast with Matt and McKinley Breen.

History Dispatches Podcast: https://historydispatches.com/

The Explorers Podcast: https://explorerspodcast.com/

History Dispatches & Explorers Podcast are part of the Airwave Media Network: www.airwavemedia.com

I Know Dino Website: https://iknowdino.com

I Know Dino Book: https://books.disney.com/book/i-know-dino/

Sources:

https://archive.org/details/inpursuitofearly0000kiel/page/n5/mode/2up

https://archive.org/details/huntingfordinosa00kiel

https://iknowdino.com/deinocheirus-episode-527/

https://www.nature.com/articles/520158a

https://www.nature.com/articles/nature.2014.16203

https://www.nature.com/articles/nature13874

https://www.nature.com/articles/nature13930

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Zavacephale is both the oldest and most complete pachycephalosaur ever found. Plus three more new dinosaurs and Michele Hollow joins us to discuss Mary Anning.

For links to every news story, all of the details we shared about Stenopelix, links from Michele Hollow, and our fun fact check out https://iknowdino.com/Stenopelix-Episode-553/

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Dinosaur of the day Stenopelix, a small (likely) ceratopsian that we only know from impressions in sandstone slabs.

Interview with Michele Hollow, an award-winning journalist, and author of the book “Jurassic Girl: The Adventures of Mary Anning, Paleontologist and the First Female Fossil Hunter”, a historical fiction book for both young and less young readers.

In dinosaur news this week:

• The most complete and oldest known pachycephalosaur was discovered and named Zavacephale rinpoche
• There’s a new "thunder dome" pachycephalosaur, Brontotholus harmoni
• There’s a new flat-headed hadrosaur, Ahshislesaurus wimani, that was as large as a T. rex
• There’s a new hadrosaur dinosaur from Morocco named Taleta taleta (yes the genus and species name are the same)

This episode is brought to you by our patrons. Their generous contributions make our podcast possible! You can now save 10% by paying annually. Go to Patreon.com/iknowdino to sign up and help us keep creating I Know Dino every week.

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Plus, a new species of megaraptor, Joaquinraptor casali, is one of the most complete ever found.

For links to every news story, all of the details we shared about Dromaeosauroides, and our fun fact check out https://iknowdino.com/Dromaeosauroides-Episode-552/

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Dinosaur of the day Dromaeosauroides, a theropod we only know from two teeth, and maybe some fossilized poop.

In dinosaur news this week:

• A new megaraptor, Joaquinraptor casali, may have died in the middle of eating a crocodilian
• Analyzing skull mechanics can tell us a lot about different theropod dinosaur feeding strategies
• The alvarezsaur Bannykus ate meat (instead of maybe insects)
• A poor sauropod got gnawed on by a theropod (probably)
• The gut contents of a subadult Diamantinasaurus shows it was not a picky eater and it did not chew its food
• A closer look at coprolites found in the Lameta Formation in India show they were likely pooped out by an omnivorous animal, and not a titanosaur (as previously thought)

This episode is brought to you by our patrons. Their generous contributions make our podcast possible! You can now save 10% by paying annually. Go to Patreon.com/iknowdino to sign up and help us keep creating I Know Dino every week.

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We joined the Common Descent podcast for their Silver Screen Science segment.

We go through everything Jurassic World Rebirth got right and wrong as well as our nit-picks of the details that got under our skin.

Check out the More Thoughts segment at https://www.patreon.com/posts/142875146/ for more.

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Amy Atwater, co-host of Weird & Dead joins to discuss some of her favorite fossils and her new book The Fossil Keeper's Treasure. Plus a new ornithomimosaur with big hands, Mexidracon, and monstersaurs

For links to every news story, all of the details we shared about Mochlodon, links from Amy Atwater, and our fun fact check out https://iknowdino.com/Mochlodon-Episode-551/

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Dinosaur of the day Mochlodon, a stocky island dinosaur that was first found way back in 1859.

Interview with Amy Atwater, a paleontologist and science communicator, the Director of Paleontology at Friends of Dinosaur Ridge in Morrison, Colorado, co-host of the podcast Weird & Dead, and author of the book “The Fossil Keeper’s Treasure”. Follow her @Mary_Annings_Revenge

In dinosaur news this week:

• There’s a new ornithomimosaur with very large hands named Mexidracon longimanus

This episode is brought to you by our patrons. Their generous contributions make our podcast possible! You can now save 10% by paying annually. Go to Patreon.com/iknowdino to sign up and help us keep creating I Know Dino every week.

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