Fossil Preparation - Iguanodon dinosaur tail vertebrae Isle of ...

Petrification: Fossils and the Revelation of Deep Time - Iguanodon ...

Iguanodon: History of a Dinosaur - YouTube

Iguanodon Adult and Juvenile | fossil, minor | Next month a ...

From One, Two The 2nd #dinosaur named, after #Megalosaurus, and first #herbivore and #ornithischian, #Iguanodon turned heads even in 1825. Though best known for its thumbspike, a huge claw on each hand covered in a keratinous sheath that could inflict severe facial lacerations and gut punches, in its original description the claw didn’t appear. The beast was famously made into a rhino-lizard, with the thumb spike placed on the nose. A few years and 45+ skeletons later twas realized the spikes were on the hands, not the nose. You might note the long arms of Iguanodon, longer than I thought they’d be. This is my first time seeing a complete Iguanodon skeleton that I can recall, and my goodness did I leave being impressed. It is B I G! It was fantastic spending time with a classic that every dinosaur-loving human has heard of. The fact that it exceeded 30’ and 4+ tons makes it no small #Cretaceous #dinosaur. The #Iguanodon is a #hadrosauroid, a basal relative of #hadrosaurs, aka duck-billed #dinosaurs. The teeth are tightly packed together akin to the dental battery of hadrosaurs and #ceratopsians. Speaking of small, I was shocked at how tiny #Mantellisaurus is. Size alone doesn’t make something a new genus, far from it. But check out the arm to leg proportions, much shorter than that of Iguanodon. And with various Iguanodon size classes known with long arms, it isn’t an ontogenetic feature. Mantellisaurus has a, ahem, complex history, way more than I will go into here. It is known from a wonderful block “Mantel-piece,” (figure at end of video, along with a Mantell sketch) containing most of a skeleton. Putative other skeletons of it are known. A 2023 paper by Bonsor e.a. described it in great detail. I suggest that be your first stop for info. They include a photo of skin impressions, reminded me of a Pebbletec pool coating :-). Their paper’s a cladogram, surprisingly to me, produced only one most parsimonious tree (I’m used to seeing dozens, hundreds, and even thousands of ‘em). It is closely related to #Barilium and slightly more derived than Iguanodon. These casts are @fukui_dinosaur museum, a stunning place #museum. #FossilCrates | TikTok

r/Naturewasmetal on Reddit: How our understanding of the dinosaur ...