Corythosaurus: a genus of hadrosaur. Generally you have to deduce what an extinct animal ate by it’s anatomy… However we have a specimen that was preserved with it’s last meal still in it’s belly: pine needles, seeds, twigs and fruit. Thinking of how tough pine needles and twigs would be to digest I bet these dinosaurs had quite the digestion tract.
Guanlong: a diminutive relative of the T-rex. It had 3 long fingers on each hand instead of two. As it grew the crest on its snout grew larger. The name means “five coloured crowned dragon”. I do not know how the five colours were determined…
Psittacosaurus: a very early ceratopsian dinosaur. This genus is among the most documented of dinosaurs. This is because there are so many fossils of it that have been found. Some fossils have even given us many details about its skin and flesh. It has randomly scattered large scales, with smaller scales filling in the spaces. It also had a patch of tubular structures (maybe feathers?) on the upper tail.
Maotherium: many of the creatures I have done so far were not not dinosaurs, but at least they were reptiles. This one is not even that, but it is on the list anyway. If my (limited and un-thorough) googling is to be believed, this mammal was very small, smaller than mice small. However, Don’t quote me on that fact because I am basing it of a picture of a skeleton compared to a human finger. It’s late and I left drawing until late. This sort of situation is why I use the following quote from Abraham Lincoln: “Don’t believe everything you see on the internet”
Kaprosuchus: ok, ok. I know I have described some of the other reptiles as terrifying, but I think this one is especially insane. Take a crocodile. Turn 3 pairs of its teeth into long fang/tusks. Give it some horns on the back of the head. Move the eyes forward a bit so that it can better focus on its prey and have depth perception. Finally, take it out of the water and straighten its legs so that it can run properly. Honestly all you would need to do is give it fire breath and some wings and it would be a dragon.
Attenborosaurus: a species of pliosaurid. This species is represented by a single fossil specimin. The remails were destroyed in by a bombing raid in World War II. Luckily there had been a plaster cast made, so we still have something to show that it once existed.
Quetzalcoatlus: this pterosaur is terrifyingly huge for something that can fly and would most likely eat you. It stood as tall as a giraffe. Just think about that…