Myliobatis
Myliobatis is a genus of eagle rays in the family Myliobatidae. Description. "Myliobatis" species can reach a width up to about . Their bodies consist of a rhomboidal disc, wider than long, with one dorsal fin. The head is broad and short, with eyes and spiracles on the sides. The tail is slender, with one or two large spines at the base, without tail fin. The teeth are arranged in the lower and upper jaws in flat tooth plates called pavement teeth, each consisting of about seven series of plates, which are used to crush clam shells and crustaceans. Biology . "Myliobatis" species are ovoviviparous. Their gestation last about 6 months and a female produces four to seven embryos. "Myliobatis" species mainly feed on molluscs, bottom-living crustaceans, and small fishes. Habitat. "Mylobatis" species live in warm, shallow waters. Adults prefer sandy shores, while juveniles can usually be encountered offshore. Species. Extant species. Currently, 11 species in this genus are recognized: Extinct species. Extinct species within this genus include: These eagle rays lived from the Cretaceous to the Quaternary periods (from 70.6 to 0.012 Ma). Fossils of these fishes have been found worldwide. The extinct species "Myliobatis dixoni" is known from  Tertiary deposits along the Atlantic seaboards of the United States, Brazil, Nigeria, England, and Germany.