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Snapping turtles: Alligator snapping turtle (Macrochelys temminckii) Dermatemydidae Gray, 1870 : 1: Central American river turtle: Central American river turtle (Dermatemys mawii) Dermochelyidae Fitzinger, 1843 : 1: Leatherback sea turtle: Leatherback sea turtle (Dermochelys coriacea) Emydidae Rafinesque, 1815: 12: Pond turtles, terrapins, and ...
Sea turtles (superfamily Chelonioidea), sometimes called marine turtles, [3] are reptiles of the order Testudines and of the suborder Cryptodira.The seven existing species of sea turtles are the flatback, green, hawksbill, leatherback, loggerhead, Kemp's ridley, and olive ridley.
Testudinoidea is a superfamily within the suborder Cryptodira of the order Testudines. It includes the pond turtles (Family: Emydidae), Asian turtles (Family: Geoemydidae), the monotypic big-headed turtle (Family: Platysternidae), and the tortoises (Family: Testudinidae).
Cryptodira differ from Pleurodira (side-necked turtles) in that they lower their necks and pull the heads straight back into the shells, instead of folding their necks sideways along the body under the shells' marginals. They include among their species freshwater turtles, snapping turtles, tortoises, softshell turtles, and sea turtles.
An olive ridley sea turtle nesting on Escobilla Beach, Oaxaca, Mexico. Female sea turtles migrate long distances to nest on favored beaches. Turtles are the only reptiles that migrate long distances, more specifically the marine species that can travel up to thousands of kilometers.
Cheloniinae is a subfamily of the sea turtle family Cheloniidae. Its parent superfamily is Chelonioidea . The members of the subfamily, and genera that make it up, are:
In contrast to their earth-bound relatives, tortoises, sea turtles do not have the ability to retract their heads into their shells. Their plastron, which is the bony plate making up the underside of a turtle or tortoise's shell, is comparably more reduced from other turtle species and is connected to the top part of the shell by ligaments without a hinge separating the pectoral and abdominal ...
Genus Caretta - loggerhead sea turtle; Genus Chelonia - green sea turtle; Genus Eretmochelys - hawksbill sea turtle; Genus Lepidochelys - ridley sea turtle; Genus Natator - flatback sea turtle; Family Dermochelyidae [6] Genus Dermochelys - leatherback sea turtle; Superfamily Kinosternoidea. Family Dermatemydidae [6] Genus Dermatemys - Central ...