The T-rex had feathers, hollow bones, and was most likely warm blooded

But can a bird be classified as Dinosaur ?

no, birds/reptiles are descendants of dinosaurs

>11 posts in
>No one else noticed that the "T-Rex" has a third finger

Taxonomically speaking, that's more likely an Allosaurus.

Also, Archaeopteryx is taxonomically a different branch of dinosaur. Both branches of dinosaur share a root ancestor, like how humans and lions both evolved from early mammals. However, just because Archaeopteryx is a dinosaur and the likely ancestor of birds does not mean all other dinosaurs are the ancestors of birds.

For example, our root ancestor had fur, tigers had fur. However, human beings do not have fur, except for "bears." There's enough taxonomic differences to put whatever is in that photo could be put in a taxonomic group.

For example, if it were a live today it would be classified as "QUIT STUDYING IT AND GET IN THE JEEP ALREADY! THAT THING IS GOING TO EAT US!!!"

Because dinosaurs were pictured as big reptiles since forever, not as birds.

Dinosaurs evolved from birds

How could it be a bird if it was warm blooded?

>ftw no Emu War.
>tfw no Terror Bird leading the Emu Army.
Fucking science is bullshit.

>Geese and emus come from T-rex
Spooky.

In modern taxonomy they are indeed considered to be dinosaurs.

>See?
>That is a T-Rex with the proper number of finger bones!
>Fossil record may not show always feathers, because that's not how fossils work, but at least we have a semi-accurate T-Rex now

>T-rex turned into a bird?
No
>related to other species that eventually became birds?
Yes

T-rex is extinct. You want to look at the smaller theropods that survived the KT extinction event.

That's like saying mammals are related to dinosaurs seeing as mammals are derived from several species of mammal-like dinosaurs.

Yes, in the sense that we modern humans are reptiles.

And absolutely not surprising.

Technically speaking, all birds are indeed dinosaurs, but most dinosaurs are not birds. It has to do with the fact that birds as we know them (class Aves) are a monophyletic clade contained within the larger Diosauria and Archosauria clades.

So, it's inaccurate to call T-rex a bird, since that represents a polyphyletic group. Although they share many similar characteristics, birds are defined by more than just feathers, hollow bones, and endothermy, including a keeled sternum, toothless beak, tail fan, and loss of leg feathers.

Just birds, and dinosaurs(and thus birds) are in the larger group of reptiles

Its funny how little we know about dinosaurs.

.. And how much money the Jews make off of them.

Birds are reptiles

>come from t-Rex
Probably not, they may be related to the ancestors of birds but I don't think they're the direct ancestors themselves.

>mammals are derived from several species of mammal-like dinosaurs
No

We aren't reptiles, we are part of a group containing both reptiles and mammals, and thus we are more closely related to reptiles than say, amphibians, but birds are literally reptiles, alligators are more closely related to birds than they are to lizards.

>birds are literally reptiles

They're in the same phylum together with birds and humans. That's it. Stop spreading misinformation.

You have to have a beak or a bill if you want to be a bird.

How many of those species on the chart are still alive today?

Birds are warm blooded buddy.