Most reptiles lay eggs. It is divided into three suborders. Pleurodira includes side-necked turtles, Cryptodira includes all other living species of turtles and tortoises, and Amphichelydia includes all extinct species. Family Dermochelyidae includes only one modern species of sea turtle, the leatherback turtle. Rather than a shell covered with scutes, leatherbacks have leathery skin.
Most scientists currently recognize seven living species of sea turtles grouped into six genera.
Lepidochelys kempii Kemp's ridley L . Deirdre Hyde, Jeanne Mortimer, Dan Evans.