Cardabiodon (SciiFii)

The sand mackerel shark (Cardabiodon carcharias, name meaning "Cardabia toothed shark") is a species of large mackerel shark that originally lived in Australia, North America, England, and Kazakhstan about 95 to 91 million years ago during the Cenomanian to Turonian of the Late Cretaceous as two extinct species, Cardabiodon ricki and Cardabiodon venator, and the genus itself was once extinct, but has since been brought back from extinction by SciiFii and introduced throughout the subtropical and temperate oceans off the northern Atlantic coasts of North America to help boost biodiversity. The sand mackerel shark is a member of the Cardabiodontidae, a family unique among mackerel sharks due to differing dental structures. It is an antitropical shark that inhabits temperate neritic and offshore oceans between 40° and 60° latitude, similar to the porbeagle shark. A rather large shark, the sand mackerel shark measures up to 5.5 metres (18 feet) in length. It is an apex predator in its ecosystem and uses its large, robust teeth and fast swimming capabilities to prey on a variety of marine animals including plesiosaurs, ichthyosaurs, and other large fish, but it does not prey on marine mammals. The sand mackerel shark also has a very heavy and stocky body. At birth, sand mackerel shark individuals measure between 41–76 centimetres (16–30 in) in length and reaches sexual maturity at around five to seven years of age. The sand mackerel shark as an average lifespan of between 28 to 35 years, but the maximum lifespan of the sand mackerel shark is not known. The conservation status of the sand mackerel shark is Near Threatened due to overfishing for its fins, however, thanks to the conservationists, the sand mackerel shark is a protected species and fishing for shark fins have since been made illegal to protect all shark species.