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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.
It was originally one of the six endemic tortoise species of Madagascar (two large Aldabrachelys; three medium Astrochelys; two small Pyxis). [3] It was sympatric with the other giant tortoise species of Madagascar, Grandidier's giant tortoise ( Aldabrachelys grandidieri (also extinct)), and both species occupied both the coasts and the cooler ...
Aldabrachelys [1] is genus of giant tortoises, including the Aldabra giant tortoise (Aldabrachelys gigantea) native to the Seychelles, as well as two extinct species, Aldabrachelys abrupta and Aldabrachelys grandidieri known from Madagascar.
The three Aldabra-Seychelles giant tortoise subspecies can be distinguished based on carapace shape, but many captive animals may have distorted carapaces, so they may be difficult to identify. Arnold's giant tortoise is flattened, smooth, and with a relatively high opening to the shell; it is usually black.
An Aldabra giant tortoise, an example of a giant tortoise.. Giant tortoises are any of several species of various large land tortoises, which include a number of extinct species, [1] as well as two extant species with multiple subspecies formerly common on the islands of the western Indian Ocean and on the Galápagos Islands.
The Seychelles giant tortoise (Aldabrachelys gigantea hololissa), also known as the Seychelles domed giant tortoise, is a tortoise subspecies in the genus Aldabrachelys.. It inhabited the large central granitic Seychelles islands, but was hunted in vast numbers by European sailors.
Titanochelon is an extinct genus of giant tortoises known from the Early Miocene to the beginning of the Pleistocene in Europe, extending from the Iberian Peninsula to Anatolia. Some members of the genus were larger than extant giant tortoises , with a shell length of up to 2 m (6 ft 7 in).
As of 2022, Jonathan, a Seychelles giant tortoise, is thought to be the oldest living giant tortoise at the age of 193 years. [25] Esmeralda, an Aldabra giant tortoise, is second at the age of 181 years, since the death of Harriet, a Galapagos giant tortoise, at 175. An Aldabra giant tortoise living on Changuu off Zanzibar is reportedly 199 ...