Grievous the Gallimimus is a rogue ornithomimosaur and a servant to Tyrant the Tarbosaurus.
As an ornithomimosaur he resembles an ostrich (complete with a long neck and small head with a toothless beak), but is far fiercer and quite strong for his species.
He also wears cybernetic implants, similar to Dooku the Kimmerosaurus.
Grievous is cruel and is willing to commit any form of villainess act in order to satisfy his master, he also has a high temper.
He is a surprisingly compatible fighter, able to rival most of The Velociraptors.