>>8418942Well, maybe I will have to eat my words (I didnt intend to be rude) because as you, I was only guessing. And animal that lived for some million years... 1000 seems like too little from my point of view.
But it may actually well be that their paleogenetic span (however it is called) was rather short
So I went into the wikipedia and found that average life was max 28 years, on one side, and that they lived during the Maastrichtian period, that spans for 6 million years...
This is absurd but though
Lets hypothesize only 10 tyranosaurus runned wild at the same time all over the world. A generous lifespan of 30 years. 6 million years. Total: 2 million individuals. Not that much.
I would rather keep with irrational counting I had done first, I didnt know how much (its a rare question) but a lot (one thousand is peanuts)
peace
>More than 50 specimens of Tyrannosaurus rex have been identified, some of which are nearly complete skeletons.>Some scientists consider Tarbosaurus bataar from Asia to be a second Tyrannosaurus species while others maintain Tarbosaurus is a separate genus. Several other genera of North American tyrannosaurids have also been synonymized with Tyrannosaurus>Histologic analysis of Tyrannosaurus rex bones showed LACM 28471 had aged only 2 years when it died, while Sue was 28 years old, an age which may have been close to the maximum for the species>Over half of the known Tyrannosaurus rex specimens appear to have died within six years of reaching sexual maturity>Tyrannosaurus lived during what is referred to as the Lancian faunal stage (Maastrichtian age) at the end of the Late Cretaceous. Tyrannosaurus ranged from Canada in the north to at least Texas and New Mexico in the south of Laramidia 
