“Another project is reconstructing models of the hind limbs and hips,” he said. “Stegosaurus moved on all fours very slowly, we think … It was a fairly unathletic dinosaur. A good modern analogue is something like a rhino, although a rhino is capable of short bursts of speed.” … [Read more...] about Sophie the Stegosaurus debuts at London’s Natural History Museum
Collections of very large numbers of species often occur in single layers of rock which likely represent a very limited timespan, or are scattered across huge areas where local differences are as viable an explanation as change over time. Some species are known from large numbers of specimens but their exact origins were never recorded accurately, so which came when isn’t known. The only real way to solve this may be to start from scratch and collect everything yourself so you know what it is and where it has come from and this is essentially the approach taken by a team from the Museum of the Rockies in Montana. … [Read more...] about Triceratops horns evolved over time
The province's extraordinary importance stems from a unique combination of geological factors. Its Early Cretaceous Yixian rocks were formed 125m years ago in a highly volcanic area dotted with numerous shallow lakes - a perfect combination for the preservation of fossil specimens. Dinosaurs and many other creatures would have been killed simultaneously by sudden volcanic action, then buried very quickly and trapped in the protective sedimentary layers between the ash layers. And the fact that these rocks lie near the surface today, with little vegetation or human construction to get in the way, makes extraction relatively easy. … [Read more...] about Did some dinosaurs really have feathers?