M. atlas skeleton at the American Museum of Natural History
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Reptilia
Order:
Testudines
Suborder:
Cryptodira
Superfamily:
Testudinoidea
Family:
Testudinidae
Genus:
†Megalochelys Falconer & Cautley, 1837[1][2]
Synonyms
Colossochelys Falconer & Cautley, 1844[1][3]
Megalochelys ("great turtle") is an extinct genus of tortoises that lived from the Miocene to Pleistocene. They are noted for their giant size, which is among the largest of any known testudine, with a maximum carapace length over 2 m (6.5 ft) in M. atlas. During the dry glacial periods it ranged from western India and Pakistan (possibly even as far west as southern and eastern Europe) to as far east as Sulawesi and Timor in Indonesia, though the island specimens likely represent distinct species.[4]
^ abCite error: The named reference TEWG2015 was invoked but never defined (see the help page).
^Falconer, H. and Cautley, P.T. 1837. On additional fossil species of the order Quadrumana from the Siwalik Hills. Journal of the Asiatic Society of Bengal 6:354–360.
^Falconer, H. and Cautley, P.T. 1844. Communication on the Colossochelys atlas, a fossil tortoise of enormous size from the Tertiary strata of the Siwalk Hills in the north of India. Proceedings of the Zoological Society of London 1844(12):54–84.
^Rhodin, Anders; Pritchard, Peter; van Dijk, Peter Paul; Saumure, Raymond; Buhlmann, Kurt; Iverson, John; Mittermeier, Russell, eds. (2015-04-16). "Turtles and Tortoises of the World During the Rise and Global Spread of Humanity: First Checklist and Review of Extinct Pleistocene and Holocene Chelonians". Conservation Biology of Freshwater Turtles and Tortoises. Chelonian Research Monographs. Vol. 5 (First ed.). Chelonian Research Foundation. doi:10.3854/crm.5.000e.fossil.checklist.v1.2015. ISBN 978-0-9653540-9-7.
taxa. Megalochelys atlas Falconer and Cautley, 1844 Late Miocene to Early Pleistocene, India (Sivalik Hills), Myanmar, ?Thailand Megalochelys cautleyi...
†Hesperotestudo (extinct c. 9,000 years Before Present), †Megalochelys, †Solitudo, and †Titanochelon. Both Megalochelys and Titanochelon reached sizes substantially...
larger tortoises were present in Australia (Meiolania), southern Asia (Megalochelys), Europe (Titanochelon), Madagascar (Aldabrachelys), North America (Hesperotestudo)...
saltwater crocodiles and green sea turtles. An extinct giant tortoise, Megalochelys atlas, was formerly present, but disappeared by 840,000 years ago, possibly...
Galápagos Islands), Stigmochelys and Centrochelys (Africa), and the extinct Megalochelys (southern Asia). These species are also unique for their ability to remember...
protostegids, the Miocene Stupendemys, and two Quaternary testudines (Megalochelys and Titanochelon). Carbonemys’ relatively massive jaws indicate that...