Feathers and other feather-like stuff are known in several so-called saurischian dinosaurs, including tyrannosaurs and maniraptors — the ancestors to modern birds. Now, feather-like structures ...

The hips of the ornithischian dinosaur Stegosaurus (left) and the saurischian dinosaur Allosaurus (right) Modified from Seeley, 1888 Time has not been very kind to classic dinosaur science. As new ...

Dinosaur images by Dmitry Bogdanov, Torley, Durbed, under a Creative Commons Attribution-Share Alike 3.0 License. “Luckily, most of what we’ve pieced together about dinosaurs—how they fed ...

“There are no anatomical signs of any true pneumatic features that would have been related to invasive air sacs prior to the evolution of pterosaurs and saurischian dinosaurs,” Tito Aureliano ...

Herrerasaurus ischigualastensis is an early saurischian dinosaur. It shared a bipedal, running anatomy common to large carnivorous dinosaurs that would evolve in the future, but this dinosaur ...

The feathery coelurosaurs belong to the saurischian side of the tree, but paleontologists have also discovered dinosaurs on the other side – on the ornithischian branches – with feather-like ...

The new lagerpetid (Ixalerpeton) and saurischian dinosaur (Buriolestes) were unearthed from the ~230-million-year-old Carnian Santa Maria Formation -- one of the oldest known rock units including ...

The rise of dinosaurs is one of evolution's most intriguing success stories. Emerging in the mid-Triassic period, their journey to dominance spanned millions of years, marked by environmental ...

So basically, until now, it was thought that feathers were only found in the saurischian branch of dinosaurs. "The issue with this heterodontosaurid is we never thought these guys, ornithischians ...