Segnosaurs. Along with spinosaurids, they're my favourite family of theropods. I love everything that's kind of weird. And therizinosaurs are the weirdest of them all. Long sauropod-like neck, little beaked heads, huge claws and enormous beer-belly. Why don't like them?
Yes, that's right. This guy is Therizinosaurus cheloniformis, the giant member of the family. Incredible beast. Looks like a patchwork from different kind of dinosaurs. And we changed opinions about it for so long. first was a giant turtle, then a big mean predator, then a big clawed and scaly ostrich and then this: a Tyrannosaurus-big, herbivorous and feathered coelurosaur.
The problem with Therizinosaurus is that we have little remains of it: apart from the gigantic arms with swords-like claws and some foot remains, it isn't very complete. so, to portrait it in the most realistic way, I looked to the best preserved segnosaurs. Erlikosaurus, Segnosaurus and the most well preserved of them all, Nothronychus graffami.
The result is a very bulky maniraptoran. I don't like the obese and yet skinny restorations of Therizinosaurus, so I bulk it up with skin, fat and muscles. the results are pretty impressive: that's an animal you shouldn't piss off, even if you are a Tarbosaurs-sized predator.
And once they said that those claws are too fragile for self-defence. Bullshit.
Also, a huge difference is the pose. There isn't written anywhere that therizinosaurs couldn't move in a horizontal-way while walking like any other theropod. Yes, they had a more upright posture, but they didn't have a broomstick in their asses.
Therizinosaurus ( /θɛˌrɪzɨnɵˈsɔrəs/; 'scythe lizard', from the Greek therizo meaning 'to reap' or 'to cut off' and sauros meaning 'lizard') is a genus of very large theropod dinosaur. Therizinosaurus lived in the late Cretaceous Period (late Campanian-early Maastrichtian stages, around 70 million years ago), and was one of the last and largest representatives of its unique group, the Therizinosauria. Its fossils were first discovered in Mongolia and they were originally thought to belong to a turtle-like reptile (hence the species name, T. cheloniformis — "turtle-formed"). It is known only from a few bones, including gigantic hand claws, from which it gets its name.
Coloured with Pantone. Based on ostrich and giant panda.
References: S. Hartman, G. S. Paul, J. Headden
PS: Sorry for the colours's quality, bad scanner
EDIT: added a better file. It was in need for a high-resolution picture.