Three #Pteranodon, One video Pteranodon means wing (pter) without (a), tooth (don) referencing its toothless beak which was in stark contrast to the flying reptiles known when it was named, such as #Rhamphorhynchus, #Pterodactylus, and the like. All of us (ok, maybe not #pterosaur researchers :-)) think of #pterosaurs in 3 dimensions, yet they are almost always found crushed flat. Real flat. A centimeter of bone thickness would be massive! Why? Thin, hollow bones don’t hold up well to sediment p