We explore the differences between the key groups of theropods. Plus an amazing new Psittacosaurus find; The new Allosaurus type specimen is official; And new techniques confirm another predator that lived alongside Spinosaurus.For links to every news story, all of the details we shared about Cruxicheiros, and our fun fact check out https://iknowdino.com/Cruxicheiros-Episode-497/Join us at www.patreon.com/iknowdino for dinosaur requests, bonus content, ad-free episodes, and more.Dinosaur of the day Cruxicheiros, a tetanuran theropod that lived in the Middle Jurassic in what is now Warwickshire, England.In dinosaur news this week:A new exceptional Psittacosaurus has both reptile like scaly skin and bird like feather-covered skinAllosaurus has a new type specimen (the Smithsonian’s skeleton)Combining multiple techniques to study isolated teeth, paleontologists found four different types of theropods in the Kem Kem Beds in Morocco, including a rare noasauridListener Question: The major groups of theropods and their unique characteristics 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/dinoSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.