It is currently known to include two. Iguidensis, which were among the larger theropods, slightly bigger than Tyrannosaurus and possibly slightly larger than Giganotosaurus, but not quite as large as Spinosaurus.
The genus Carcharodontosaurus is named after the shark genus Carcharodon itself named from the Greek??????? (karcharo) meaning "jagged" or "sharp" and?????? Carcharodontosaurus had enormous jaws and long, serrated teeth up to eight inches long. Paul estimates Carcharodontosaurus iguidensis at 10 m (33 ft) and 4 t (4.4 short tons).
(This is not a T-Rex fang, but it is often referred to as African T-Rex).