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The leatherback sea turtle is the largest sea turtle, reaching 1.4 to more than 1.8 m (4.6 to 5.9 ft) in length and weighing between 300 and 640 kg (661 to 1,411 lbs). Other sea turtle species are smaller, ranging from as little as 60 cm (2 ft) long in the case of the Kemp's ridley, which is the smallest sea turtle species, to 120 cm (3.9 ft ...
Turtles, or testudines, are reptiles of the order Testudines, characterized by a special shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked turtles), which differ in the way the head retracts. There are 360 living and recently extinct ...
The leatherback sea turtle ( Dermochelys coriacea ), sometimes called the lute turtle, leathery turtle or simply the luth, is the largest of all living turtles and the heaviest non- crocodilian reptile, reaching lengths of up to 2.7 metres (8 ft 10 in) and weights of 500 kilograms (1,100 lb).
The green sea turtle ( Chelonia mydas ), also known as the green turtle, black (sea) turtle or Pacific green turtle, [4] is a species of large sea turtle of the family Cheloniidae. It is the only species in the genus Chelonia. [5] Its range extends throughout tropical and subtropical seas around the world, with two distinct populations in the ...
The loggerhead sea turtle ( Caretta caretta) is a species of oceanic turtle distributed throughout the world. It is a marine reptile, belonging to the family Cheloniidae. The average loggerhead measures around 90 cm (35 in) in carapace length when fully grown. The adult loggerhead sea turtle weighs approximately 135 kg (298 lb), with the ...
Galápagos tortoise. The Galápagos tortoise or Galápagos giant tortoise ( Chelonoidis niger) is a very large species of tortoise in the genus Chelonoidis (which also contains three smaller species from mainland South America ). The species comprises 15 subspecies (13 extant and 2 extinct ). It is the largest living species of tortoise, and ...
Binomial name. †Archelon ischyros. Wieland, 1896. Archelon is an extinct marine turtle from the Late Cretaceous, and is the largest turtle ever to have been documented, with the biggest specimen measuring 4.6 m (15 ft) from head to tail and 2.2–3.2 t (2.4–3.5 short tons) in body mass. It is known only from the Pierre Shale and has one ...
Márquez, 1990. (ex errore) The olive ridley sea turtle ( Lepidochelys olivacea ), also known commonly as the Pacific ridley sea turtle, is a species of turtle in the family Cheloniidae. The species is the second-smallest [4] [5] and most abundant of all sea turtles found in the world. L. olivacea is found in warm and tropical waters, primarily ...