This is the dreaded LegoXenoTyranno, but you can call him Alien Rex.
A crafty builder named Retinence drew inspiration from a concept design by nebezial and created this impressive looking LEGO sculpture, complete with all sorts of pokey things and sharp bits.
It's the scariest critter I've ever seen rendered in LEGO, and kinda looks like a badass version of Grimlock from Transformers.
Link --via Obvious Winner