Alright, look. I’m all for artistic license. But sometimes it just gets out of hand.
Exhibit A: this very well drawn giant owl Cryolophosaurus.
“Theropod dinosaurs had feathers, right? So surely they must’ve been as extensive as birds today! There’s no problem strapping a big coat of feathers onto a 20-foot long creature!” is what I’m guessing might’ve been going through his head. However, there’s a few problems with this picture.
Firstly, Cryolophosaurus is related to Dilophosaurus. Dilophosaurus isn’t included in Tetanurae, the group that includes coelurosaurs, aka tyrannosaurs, compsognathids, maniraptorans, and ornithomimosaurs. The problem with Cryolophosaurus not being included in this group is that the majority of feathered dinosaurs discovered are in this group. Thus, it’s improbable that Cryolophosaurus had feathers.
Now, the other problem is the extent to which this Cryolophosaurus is feathered. It seems to be covered in a big coat of feathers, making it look like a gigantic barn owl. While the thought of a 20-foot long toothy owl is frightening, the thing is, Cryolophosaurus didn’t need these feathers, and certainly not to this extent. I’m not sure if I have it correct, but if I recall correctly larger animals have an easier time retaining heat than smaller animals, hence why they don’t need much insulation like fur or feathers. This is why elephants only have sparse hair and mostly bare skin. Most of the feathered dinosaurs discovered are also quite small, such as Anchiornis who, while being literally covered from head to toe in feathers, was only 2 or 3 feet long.
Also, in case you were wondering, yes, this is in fact drawn by the same person who drew that feathered Tyrannosaurus. He’s definitely a good artist, I won’t doubt that, but a few of his depictions could use a bit of paleontological accuracy.