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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.
In 2022, Jonathan's estimated age exceeded that of the tortoise that Guinness World Records had recognised as the oldest recorded ever, Tu'i Malila, who died in Tonga in 1966 at the age of 189. Adwaita , an Aldabra giant tortoise that died in 2006 in the Alipore Zoological Gardens of Kolkata , India, is believed to have lived to the age of 255 ...
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.
The largest known turtle ever was Archelon ischyros at 5 m (16 ft) long and 2,200 kg (4,900 lb). [283] Possible second-largest sea turtle was Protostega at 3.9 m (13 ft) in total body length. [284] [285] There is even a larger specimen of this genus from Texas estimated at 4.2 m (14 ft) in total length.
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 ...
The largest recorded individuals have reached weights of over 400 kg (880 lb) [2] [87] and lengths of 1.87 meters (6.1 ft). [ 27 ] [ 88 ] Size overlap is extensive with the Aldabra giant tortoise , however taken as a subspecies, the Galápagos tortoise seems to average slightly larger, with weights in excess of 185 kg (408 lb) being slightly ...
At his death in March 2006 at the Kolkata (formerly Calcutta) Zoo in India, Adwaita is reputed to have reached the longest ever measured lifespan of 255 years (birth year 1750). [ 24 ] As of 2022, Jonathan , a Seychelles giant tortoise , is thought to be the oldest living giant tortoise at the age of 193 years. [ 25 ]
This exceeds the size of the Vienna-specimen of the Cretaceous sea turtle Archelon, the largest known turtle, (carapace length 2.20 meters). [ 4 ] The weight of Stupendemys was estimated based on the straight carapace length, with calculations indicating a weight of 871 kg for CIAAP-2002-01 and 744 kg for MCZ(P)-4376, the former largest known ...