After a certain age people stop asking you what your favorite dinosaur is, and I think that’s sad.
My current one’s the Anchiornis, because it’s in the same clade as birds so it’s in their family tree, and it really looks like a prototype of a bird. It had 4 wings for example, but it already looked very birb-y:
(Figured I’d just turn an earlier comment into an actual post because why not)
I Think you found it! THANK YOU
The name “Herculoids” seems familiar and the Wikipedia description of Tundro is right on!
However the thumbnails don’t seem to be quite the appearance I remembered, but maybe that’s just poor memory