What dinosaur is a reptile?

Yes, Dinosaurs were reptiles. Did you know Dinosaurs closest living relatives may be birds?

EDIT: Birds ARE dinosaurs and therefore Birds are also reptiles!

When most people think of reptiles they think of cold blooded, scaly, sprawling lizards and crocodiles. Birds on the other hand are the only type of warm blooded, fuzzy reptiles alive today.

Crocodilians are dinosaurs and birds closest living relatives.