Episode 490: A new stegosaur posing as an ankylosaur. 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 News: A new stegosaur, Thyreosaurus atlasicus, had large oval plates different than any other stegosaur source A new iguanodontian, Hesperonyx martinhotomasorum, was found in Portugal source Dinosaurs and concrete have a lot in common Sponsors: This episode is brought to you by Rosetta Stone – The all-in-one language app. With Rosetta Stone, you’ll ..read more

Episode 489: South America Spectacular with Tito & Aline. A new titanosaur from Uruguay is the most complete ever found in the country; Northern Alaska had an even more dinosaurs than we thought; A site in Brazil shows dinosaur enthusiasts have been there for 1,000s of years News: A new titanosaur from Uruguay, Udelartitan celeste, is the most complete ever found in the country source Alaska had a vibrant dinosaur community in the Cretaceous source Paleontology and archaeology come together at a site in Brazil with petroglyphs and dinosaur footprints source Interview: Tito Aureliano and ..read more

Dinosaurs left behind more than their bones. There are dinosaur traces everywhere—tracks, trails (trails are like tracks, but more irregular—left by snails or worms crawling, by jellyfish dragging tentacles, or markings left by crustaceans or sea urchins), burrows, nests, eggs, tooth marks, and even their poop and vomit. All of these things (known as ichnofossils or trace fossils) give us clues into how they lived and how they behaved. We explore these traces in our two-part mini series. Studying these traces has some challenges. For example, it can be very difficult to figure out which ani ..read more

Episode 488: Microraptor revisited and April Fowl’s Day. 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. News: Dinosaur feathers were a lot more like bird feathers than we thought source Scientists have a new framework for figuring out if a dinosaur could fly source A robotic Caudipteryx demonstrated how dinosaurs could have used t ..read more

Episode 487: A strong-tailed ornithopod and a strong-armed enantiornithine. 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? News: There’s a new ornithopod, Chakisaurus nekul, which was much smaller than the titanosaurs that surrounded it in what is now Argentina source A new dinosaur, Imparavis attenboroughi, is a rare toothless enantiornithine that also likely had very powerful wings source A man out walking his dog found a nearly complete 70 ..read more

Episode 485: New Species of Ankylosaur Was Likely Social While Young. 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. News: New ankylosaur, Datai yingliangis, was described with a pair of horns at the back of its jaw source Ankylosaurs were megaherbivores that evolved skulls and jaws to eat different foods from other herbivores source Sponsors: You can dig up real dinosaur bones this summer with C ..read more

Episode 484: A New Spinosaurid and a Spinosaurus Swimming Update. The latest spinosaurid, Riojavenatrix lacustris, was named from Spain; An update on the swimming Spinosaurus debate; And a new mamenchisaurid was named “Jingia”, but a moth has that name so it will be renamed soon. News: There’s a new mamenchisaurid sauropod, “Jingia” dongxingensis, but it will be renamed soon source A new spinosaurid was named from Spain, Riojavenatrix lacustris, the “La Rioja huntress from the lake” source A new paper adds to the debate on how spinosaurs hunted and if/how they swam source Sponsors: You can ..read more

A lot, if not most, of what we know about dinosaurs is based on their bones. For most of paleontology, scientists didn’t think it was possible for anything but the bones to fossilize. But in recent years, paleontologists have been finding new ways to study old bones, and have found that in some cases (and more often than we think) soft tissues have been preserved. It’s a big deal, and can tell us a lot more about these animals. Soft tissues are so cool, we created a whole mini series around it, called “Beyond Bones.” What are soft tissues? Soft tissues are in most parts of the body, and they ..read more

Episode 483: Hadrosaur holotypes and duck-billed diets. A new small African hadrosaur, Minqaria, was named; Mantellisaurus was redescribed and found to be a valid genus; Maiasaura had a high metabolism; and much more News: New lambeosaurine dinosaur from Morocco, Minqaria bata source A new description of Mantellisaurus (including a complete 3D scan of the 80% complete holotype) confirms that it is a unique genus source Maiasaura was an active hadrosaur that grew quickly and used lots of energy source Hadrosaurs were so successful because they were good at chewing source Update on Hypsibema/Pa ..read more

Episode 482: The 200 Year History of Megalosaurus. Megalosaurus, the first ever named dinosaur, was named 200 years (and one day) ago! There have been over 50 species of Megalosaurus named, but now there is just one left. News: Dinosaurs can be ambassadors for humanity as shown by a new play called “The Colour of Dinosaurs” source Sponsors: Tell us what you think about our show in our 2024 Annual Survey! We want our show to be as enjoyable as possible, and your input will help us improve. Head to bit.ly/ikdsurvey24 to help shape the future of I Know Dino! The dinosaur of the day:&n ..read more