Strictly speaking, it should probably be named Tyrannosaurus Vampire, so it would read as a species of the genus Tyrannosaurus. Instead it is the species Vampire Rex of the genus Vampire, and that just does not work.
Strictly speaking, it should probably be named Tyrannosaurus Vampire, so it would read as a species of the genus Tyrannosaurus. Instead it is the species Vampire Rex of the genus Vampire, and that just does not work.