I admit I wasnt TOO happy when Pokemon introduced Tyrunt and Tyrantrum, so i made up a different Tyrannosauresque pokemon and its Evolution.
Both are Rock-Electro

Cuyutyr are highly energetic and their electroattacks usually happen by accident. Being more agile, juvenile Cuyutyr help in the hunt by playfully chaseing their prey straight into the jaws of adult Brontotyrannus.

Brontotyrannus means Thundertyrant and its jaw is able to crush even the strongest bones. Brontotyrannus stay with a partner for many years and sometimes they comfort their mate by rubbing along each others sides and enjoying the slight tickle of static this causes.