All birds evolved from the raptor family of therapod dinosaurs.
AnswerPossibly none. Birds do have many features in common with theropods (bipedal carnivorous dinosaurs) which suggests that they had a common ancestor. We dont know that this common ancestor was a dinosaur though. It may well have been a bird (see related links).Looking back in time through the theropod fossil record, these dinosaurs appear to be more bird-like the further back in time you look. Raptors are known to have had feathers and were fairly bird-like, but Archaeopteryx was much more bird-like and lived much earlier and may have been an ancestor of the raptors. There is also a controversial fossil called Protoavis that was dated even earlier and was more bird-like still, with hollow bones like modern birds.
So birds may have been around throughout the mesozoic era and pre-date the dinosaurs. We have little record of them though because their hollow bones mean that few fossils survive to the present day.
yes because is familiar with the phylogeny of vertebrates and they will probably tell you that yes, birds (avians) are dinosaurs. Using proper terminology, birds are avian dinosaurs; other dinosaurs are non-avian dinosaurs, and (strange as it may sound) birds are technically considered reptiles. Overly technical? Just semantics? Perhaps, but still good science. In fact, the evidence is overwhelmingly in favor of birds being the descendants of a maniraptoran dinosaur, probably something similar (but not identical) to a small dromaeosaur. What is this evidence?
Yes. Not only that but most paleontologists say that birds are feathered dinosaurs.
Yes.
Yes
Dinosaurs evolved first and then some dinosaurs evolved into birds. So all birds are technically dinosaurs.
No. Dinosaurs evolved from reptiles. Birds evolved from dinosaurs.
Birds are thought to have evolved from bipedal dinosaurs.
Birds are more like dinosaurs to the extent that many scientists say that they are dinosaurs.
The general consensus is that they evolved from a group of small theropod dinosaurs.
Both. If you think about it, birds evolved from dinosaurs, and some think birds are the only living dinosaurs left.
they didn't. they evolved into birds.
They evolved from dinosaurs.
Birds. The reason is that both crocodiles and dinosaurs are archosaurs, and birds evolved from dinosaurs.
Birds evolved from small reptiles that lived during the age of dinosaurs, but not from the dinosaurs themselves.
No. It's the other way around. A branch of the dinosaurs evolved into birds.
Birds