It really depends but first of all, dinosaur skin does not petrify so their is no such thing as dinosaur sking in our era, but teeth are bone so it does petrify. The range at which teeth could be found are from about 65 million years ago to almost 250 million years ago.
All dinosaurs shed their old teeth regularly. Having constant replacements for old teeth is a very useful adaptation. Of course, a dinosaur never would shed all of its teeth at once. It would only lose one or two teeth every once in a while.
no bird has ever had teeth except the early dinosaur birds
A dinosaur fossil or chicken nuggets
Depends on the dinosaur. T. Rex had over 60 thick, conical, banana sized teeth that were up to 9 inches. They would grow back any teeth that they lost.
Dermabrasosaurus.
Typesof dinosaur is called: omnivores, herbivores, and carnivores. A carnivore is a dinosaur that eats meat only and they usally have sharp pointy teeth to tear the meat apart. A herbivore is a dinosaur that only eats plant, these dinosaurs have flat teeth. And last but not least a herbivore is a dinosaur that eats both plants and meat. These dinosaurs have flat and sharp teeth, but we humans that are omnivores have more flat teeth than sharp, because we dont have to tear meat likedinosaurs did........... YOLO
A herbivorous one
Hadrosaurs. The dinos widout teeth.
bones it has 984 bones and about 1000 teeth
teeth
no one knows the answer!
We have no dinosaur DNA samples to study. Hence, we cannot determine which chromosomes were responsible for a dinosaur's color.