They seem to actually have nearly all been birds or what birds evolved from. A simple check on your favorite dinosaur to see if it still was probably a reptile

They seem to actually have nearly all been birds or what birds evolved from. A simple check on your favorite dinosaur to see if it still was probably a reptile is whether it's legs come out of the side like a crocodile or Komodo dragon Dinosaurs look way less cool covered in feathers, but hopefully we get some new Jurassic Parks where the people start getting victimized in snowy environments too.