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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.
The Carbonemys holotype had a shell that measured about 1.72 metres (5 ft 8 in) and estimated at 1.8 metres (5 ft 11 in) for complete carapace. [1] This would make it one of the world's largest turtles, tied with the Quaternary Peltocephalus maturin and Eocene Drazinderetes in carapace length and only outsized by the Cretaceous protostegids, the Miocene Stupendemys, and two Quaternary ...
Megalochelys ("great turtle") is an extinct genus of tortoises that lived from the Miocene to Pleistocene.They are noted for their giant size, the largest known for any tortoise, with a maximum carapace length of over 2 m (6.5 ft) in M. atlas.
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The giant leatherback sea turtle, the largest extant turtle, digs a nest on the beach. The largest extant turtle is the leatherback sea turtle (Dermochelys coriacea), reaching a maximum total length of 3 m (10 ft) and a weight of 961 kg (2,119 lb). [1] [96] The second-largest extant testudine is the Loggerhead sea turtle. It tends to weight ...
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As a critically endangered species, it is widely regarded as the largest freshwater turtle in the world. [4] Although comparisons are limited due to the small number of known specimens, its average and maximum sizes surpass those of other large freshwater turtles, such as the alligator snapping turtle and related giant softshell species ...
The Mississippi River is home to the alligator, one of the most fierce predators in North America. These big reptiles grow big in this habitat. Find out how big they can get by watching this video ...