Tyrannosaurus trionyches?

[Brandon Pilcher <trex_kid@hotmail.com>]

I have recently read a short sci-fi story titled "A Gun for Dinosaur", in 
which a hunting expedition travels back 85 million years to the Late 
Cretaceous. One of the local animals they encounter is called "Tyrannosaurus 
trionyches", described as a longer-limbed ancestor of T. rex. I've googled 
for this species, but I couldn't turn up any results other than the story 
itself. Was any tyrannosaurid fossil discovered actually given this name?

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