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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.
Jonathan (hatched c. 1832) [2] [3] is a Seychelles giant tortoise (Aldabrachelys gigantea hololissa), a subspecies of the Aldabra giant tortoise (Aldabrachelys gigantea).His approximate age is estimated to be 192 as of 2025, making him the oldest known living land animal.
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 slightly more average weight than the green sea turtle, and reaches more massive top sizes.
Measuring nearly four metres in length, the species is thought to be the largest in Europe. 72-million-year-old turtle ‘is one of the largest to have ever lived’ Skip to main content
Protostegidae is a family of extinct marine turtles that lived during the Cretaceous period. The family includes some of the largest sea turtles that ever existed. The largest, Archelon, had a head one metre (39 in) long.
The species of turtle roamed modern-day Colombia ten million years ago. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ...
The largest known turtle ever was Archelon ischyros at 5 m (16 ft) long and 2,200 kg (4,900 lb). [280] Possible second-largest sea turtle was Protostega at 3.9 m (13 ft) in total body length. [281] [282] There is even a larger specimen of this genus from Texas estimated at 4.2 m (14 ft) in total length.
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.