Geochelone

Genus of tortoises

Geochelone
Temporal range: Miocene to present
G. elegans
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Cryptodira
Superfamily: Testudinoidea
Family: Testudinidae
Genus: Geochelone
Fitzinger, 1835
Species

G. elegans
G. platynota

Geochelone is a genus of tortoises.

Geochelone tortoises, which are also known as typical tortoises or terrestrial turtles, can be found in southern Asia. They primarily eat plants.

Species

The genus consists of two extant species:

Image Common Name Scientific name Distribution
Indian star tortoise Geochelone elegans India, Pakistan and Sri Lanka.
Burmese star tortoise Geochelone platynota Myanmar

A number of tortoise species have been recently removed from the genus. This taxon as formerly defined was "polyphyletic, representing at least five independent clades".[1] Tortoises removed include members of Aldabrachelys (from the Seychelles and Madagascar), Astrochelys[2] (Madagascar), Chelonoidis (South America and the Galápagos Islands), Stigmochelys[2] and Centrochelys (Africa), and the extinct Megalochelys (southern Asia). These species are also unique for their ability to remember patterns and spatial pathways. Similar to mammals, these tortoises can remember directions and pathways by remembering the correct pathways in their long-term memory.[3]

"Self-righting" shell

The form of the shell of the Indian star tortoise resembles a gömböc, allowing it to turn over when lying upside down very easily.

References

  1. ^ Le, M.; Raxworthy, C. J.; McCord, W. P.; Mertz, L. (2006-05-05). "A molecular phylogeny of tortoises (Testudines: Testudinidae) based on mitochondrial and nuclear genes" (PDF). Molecular Phylogenetics and Evolution. 40 (2): 517–531. doi:10.1016/j.ympev.2006.03.003. PMID 16678445. Archived from the original (PDF) on 2012-03-16.
  2. ^ a b Fritz, U.; Bininda-Emonds, O. R. P. (2007-07-03). "When genes meet nomenclature: Tortoise phylogeny and the shifting generic concepts of Testudo and Geochelone". Zoology. 110 (4). Elsevier: 298–307. doi:10.1016/j.zool.2007.02.003. PMID 17611092.
  3. ^ Wilkinson, A., Chan, H. M., & Hall, G. (2007). Spatial learning and memory in the tortoise (Geochelone carbonaria). Journal of Comparative Psychology, 121(4), 412.

External links

  • Chaco tortoise media from ARKive Edit this at Wikidata
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Tortoise family
Genera
Species of the tortoise family
AgrionemysAldabrachelysAstrochelysCentrochelysChelonoidis
Galápagos tortoise
Chelonoidis complex
†Cheirogaster
  • †Cheirogaster bacharidisi
  • †Cheirogaster gymnesica
  • †Cheirogaster schafferi
ChersinaChersobiusCylindraspisGeocheloneGopherus†Hadrianus
  • †Hadrianus corsoni
  • †Hadrianus majusculus
  • †Hadrianus octonaria
  • †Hadrianus robustus
  • †Hadrianus schucherti
  • †Hadrianus utahensis
  • †Hadrianus vialovi
HesperotestudoHomopusIndotestudoKinixysMalacochersusManouriaMegalochelysPsammobatesPyxisStigmochelysStylemys
  • †Stylemys botti
  • †Stylemys calaverensis
  • †Stylemys canetotiana
  • †Stylemys capax
  • †Stylemys conspecta
  • †Stylemys copei
  • †Stylemys emiliae
  • †Stylemys frizaciana
  • †Stylemys karakolensis
  • †Stylemys nebrascensis
  • †Stylemys neglectus
  • †Stylemys oregonensis
  • †Stylemys pygmea
  • †Stylemys uintensis
  • †Stylemys undabuna
Testudo
Phylogenetic arrangement of turtles based on turtles of the world 2017 update: Annotated checklist and atlas of taxonomy, synonymy, distribution, and conservation status. Key: †=extinct.
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Suborder
Superfamily
Family
Cryptodira
Chelonioidea
(Sea turtles)
Cheloniidae
Dermochelyidae
 
Kinosternoidea
Dermatemydidae
Kinosternidae
Testudinoidea
Emydidae
Geoemydidae
 Platysternidae
Testudinidae
Trionychia
Carettochelyidae
Trionychidae
 
 
Chelydridae
Nanhsiungchelyidae
Protostegidae
 
Pleurodira
 
Araripemydidae
Bothremydidae
Chelidae
Pelomedusidae
Podocnemididae
Sahonachelyidae
 
 
 
  • Phylogenetic arrangement of turtles based on Turtles of the World 2017 Update: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status. † = extinct.
Taxon identifiers
Geochelone
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