There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
IIRC, that's still up for debate. Thomas Carr and Kenneth Carpenter both support the hypothesis that they're one species, as does Greg Paul.
I myself usually lump them due to the many similarities, but both Tarbosaurus and Tyrannosaurus bataar are plausible and can be used.