Dinosaurs were cold-blooded reptiles like crocodiles. The modern day “experts” want to try to put feathers on them and make them warm blooded to put them in the fictional evolutionary chain. Most modern day science is simply “fake news” and science fiction. It would be cool to be a biblical paleontologist and find that elusive T-Rex with a spear in its side. :-)
You cross section dinosaur bones and you get marrow like mammals and birds, not reptiles.