The leftmost two are lingual views, the rest are labial views, however, the lowers rolled part way onto their sides, making profile views. As you can see, uppers and lowers are very different. To further demonstrate this difference, here is a modern Hemipristis jaw. Mako sharks can grow up to 12 feet in length. Some fossil Makos probably were slightly larger than this.
Makos are generally pelagic, or open ocean sharks.
Some fossil Makos evolved into the present day Shortfin, and Longfin Mako sharks. Others may have evolved into the modern Great White shark. Amung his evidence is a reference to Mitochondrial DNA sequences that estimate the Carcharodon origins in the Palaeocene or early Eocene, which is much to early if Isurus evolved into Carcharodon . This species lived from the late Oligocene into the Pliocene, and probably evolved into the extant I. oxyrhinchus the Shortfin Mako. This is a lower anterior tooth.