Your question is logically impossible.
You must mean, "What prehistoric reptile is not considered by scientists to actually be a dinosaur?"
The answer is that there were many mammal-like reptiles that predated the dinosaurs and were not dinosaurs. One example being Dimetrodon, which went extinct millions of years before the first dinosaurs evolved.
Dinosaurs were not reptiles, but shared characteristics with both reptiles and birds. They were actually more like birds.
All dinosaurs are considered reptiles.
No modern reptile is considered a dinosaur. The only living animals that might be considered dinosaurs are birds.
Sowbugs are a type of crustacean. Dinosaurs are a type of reptile. Sowbugs are not a type of reptile or dinosaur.
No, the pteranodon was not a marine reptile. Rather, it was one of the largest pterosaurs, meaning that it was a flying reptile. Also, it is not considered a dinosaur, though it lived in the late Cretaceous period and thus was a contemporary of the last of the dinosaurs.
Yes a dinosaur is a reptile.
reptile
Brachiosaurus translates as "arm reptile"
the veloceraptor
A Dinosaur is an archosaurian reptile.
no, they are considered to be an actual type of reptile.
A dinosaur was a prehistoric lizard.Dinosaur was a reptile. The word Dinosaur, derived from the Greek word "deinos", meaning "marvelous" or "terrible", and "sauros", meaning "lizard".
The oldest reptile was a dinosaur. But now a frog is the oldest reptile.