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There were more. In the Permian, Triassic, and early Jurassic periods there were mammal-like reptiles from which true mammals evolved, some of which were likely warm blooded.

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Is a crocodile a amphibian or reptile?

Crocodiles and other reptiles are not dinosaurs. The family of reptiles separated from the animals that became dinosaurs several hundred million years ago and existed from that time, through the age of dinosaurs to the present. Dinosaurs evolved becoming warm blooded and to some extent covered with feathers. Reptiles remained cold blooded and scaly. The only living descendants of dinosaurs today are the birds.Crocodiles are, however more closely related to dinosaurs (and birds) than they are to most other reptiles, being members of the Archosauria.


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.


Was t-rex cold blooded or warm blooded?

It is not certain, as we have only fossilized bones which tell us little about dinosaurs' soft tissues and organs which we would need to determine warm-/cold-bloodedness, but generally assumed that dinosaurs were, like modern reptiles, cold-blooded. However, it has been recently discovered that at least some dinosaurs had live births, which is very surprising because it is most definitely not a trait of modern reptiles (modern reptiles lay eggs that hatch and do not have live births); this may lead to increased doubt over whether dinosaurs had many traits in common with modern reptiles, including being cold-blooded. Two groups of warm-blooded animals, mammals and birds, are descended from dinosaurs.


Are German shepherds cold blooded or warm blooded?

German Shepherds are dogs, dogs are mammals. Only fish and reptiles are cold blooded.


Are dinosaurs the only reptiles to have hooves?

No, because dinosaurs did not have hooves.


Are dinosaurs descended from the same animals as reptiles?

Not only that dinosaurs are directly descended from reptiles and, under current taxonomy, are classified as reptiles.


All animals that make milk?

Reptiles don't produce milk but mammals do. Its only because reptiles are cold blooded and mammals are warm blooded!


Do reptiles travel to gether?

Not really,reptiles are solitary creatures, the only reptiles that I know of that travel together are dinosaurs


Did dinosaurs have sweat glands?

Only mammals have sweat glands. Dinosaurs were reptiles, so they did not have sweat glands.


Are cows cold blooded?

Cold-blooded - just like all reptiles.


Do dinosaurs breath co2 or o2?

Dinosaurs are reptiles, so they breathe O2. Only plants breathe CO2.


Are all land creatures warm blooded?

no, only mammals and birds are warm blooded. reptiles, amphibians, insects etc. are cold blooded, like fish.