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Chelonoidis elephantopus (Harlan, 1827:284)

Floreana (Island) giant tortoise, Charles Island giant tortoise, Elephant tortoise

 

 

Taxonomy & Nomenclature

Synonym/s: Chelonoidis niger niger Quoy & Gaimard, 1824b:174; Geochelone nigra nigra Quoy & Gaimard, 1824b:174; Geochelone nigra galapagoensis (Baur, 1889:1044); Testudo galapagoensis Baur, 1889; Testudo nigra Quoy & Gaimard, 1824b; Chelonoidis nigra Quoy & Gaimard, 1824b; Geochelone californiana Quoy & Gaimard, 1824a:90 (nomen oblitum); Geochelone nigra elephantopus (Harlan, 1827:284); Testudo elaphantopus Harlan, 1827:284 (original combination); Chelonoidis nigra elephantopus (Harlan, 1827:284); Geochelone elephantopus (Harlan, 1827:284)

 

Conservation Status

Extinct

Last record: Holocene fossils (Steadman, 1986); c.1835-1850?

IUCN RedList status: Extinct

 

Hybrid individuals with G. elephantopus ancestry exist in captivity (Russello et al. 2010; Quinzin et al., Accepted). However, although no pure G. elephantopus are known to exist, they may still survive (Garrick et al., 2012).

 

Distribution

Floreana Island (=Charles Island = Santa Maria Island), Galápagos Islands, Ecuador

 

Biology & Ecology

 

 

Hypodigm

 

 

Media

 

 

References

Original scientific description:

Quoy, J. R. C. and Gaimard, J. P. (1824b). "Sous-genre tortue de terre – testudo. brongn. tortue noire – testudo nigra. N.". In de Freycinet, M.L. (in French). Voyage autour du Monde...exécuté sur les corvettes de L. M. "L'Uranie" et "La Physicienne," pendant les années 1817, 1818, 1819 et 1820. Paris. pp. 174-175.

 

Other references:

Arteaga, A. Bustamante, L., Vierira, J., Tapia, W., Guayasamin, J.M. (2019) Reptiles of the Galapagos Life on the Enchanted Islands Tropical Herping

Baur, G. (1889). The gigantic land tortoises of the Galapagos Islands. The American Naturalist 23(276): 1039-1057.

Beheregaray, L.B., Ciofi, C., Caccone, A., Gibbs, J.P. and Powell, J.R. 2003. Genetic divergence, phylogeography and conservation units of giant tortoises from Santa Cruz and Pinzón, Galápagos Islands. Conservation Genetics 4: 31–46.

Bour, R. 1980. Essai sur la taxinomie des Testudinidae actuels (Reptilia, Chelonii). Bulletin du Muséum National d'Histoire Naturelle, Paris 4(2A): 541–546.

Broom, R. (1929). On the extinct Galápagos tortoise that inhabited Charles island. Zoologica 9: 313-320.

Caccone, A., Gentile, G., Gibbs, J.P., Fritts, T.H., Snell, H.L., Betts, J. and Powell, J.R. 2002. Phylogeography and history of giant Galápagos tortoises. Evolution 56(10): 2052–2066.

Caccone, A., Gibbs, J.P., Ketmaier, V., Suatoni, E. and Powell, J.R. 1999. Origin and evolutionary relationships of giant Galápagos tortoises. Proceedings of the National Academy of Sciences, USA 96: 13223–13228.

Caccone, A. Powell, J. (2009) Giant Tortoises. Mapping their Genetic Past and Future. In: T. De Roy (ed.): Galápagos. Preserving Darwin´s Legacy. Bateman, Albany, New Zealand, p. 98-105.

Cayot, Linda J. and Hunter, Elizabeth A. (2020). Floreana and Pinta Islands: Restoring tortoise populations through lost lineage recovery, pp. 465-481. In: Gibbs, James P., Cayot, Linda J. and Aguilera, Washington Tapia (eds.). Galapagos Giant Tortoises: A volume in Biodiversity of World: Conservation from Genes to Landscapes. Academic Press. [Abstract]

Chiari, Y., Hyseni, C., Fritts, T.H., Glaberman, S., Marquez, C., Gibbs, J.P., Claude, J. and Caccone, A. 2009. Morphometrics parallel genetics in a newly discovered and endangered taxon of Galápagos tortoise. PLoS One 4(7): e6272.

Conrad, Cyler et al. (2022). Galápagos tortoise stable isotope ecology and the 1850s Floreana Island Chelonoidis niger niger extinction. Scientific Reports 12: 22187. https://doi.org/10.1038/s41598-022-26631-y

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Fritts, T.H. 1983. Morphometrics of Galapagos tortoises: evolutionary implications. In: R.I. Bowman and A.E. Leviton (eds), Patterns of Evolution in Galapagos Organisms, pp. 107–122. AAAS, San Francisco.

Fritts, T.H. (2001) A brief review of the taxonomic history of Galapagos Tortoise relevant to consideration of the most appropiate generic and specifc name for Giant Tortoises in Galapagos. U.S. Geological survey Report, 7 pp.

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Garrick, R.C., Benavides, E., Russello, M.A., Gibbs, J.P., Poulakakis, N., Dion, K.B., Hyseni, C. and Kajd, B. 2012. Genetic rediscovery of an 'extinct' Galápagos giant tortoise species. Current Biology 22(1): R10–R11.

Garrick, Ryan C. et al. (2012). Genetic rediscovery of an ‘extinct’ Galápagos giant tortoise species. Current Biology 22(1): R10-R11.

Garman, Samuel. (1917). The Galapagos tortoises. Memoirs of the Museum of Comparative Zoology at Harvard College 30(4): 261-296.

Gray, Rachel et al. (2022). Temporal Monitoring of the Floreana Island Galapagos Giant Tortoise Captive Breeding Program. Integrative and Comparative Biology. https://doi.org/10.1093/icb/icac129

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Harlan, Richard. (1827). Description of a land tortoise, from the Galápagos Islands, commonly known as the "Elephant Tortoise". Journal of the Academy of Natural Sciences of Philadelphia 5: 284-292.

Hennessy, Elizabeth and Gibbs, James P. (2022). When De-extinction Really Happens: The Revival of the Floreana Giant Tortoises in the Galápagos Archipelago. Environmental History 27(2): 334-339. https://doi.org/10.1086/719615

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Le, M. Raxworthy, C.J., McCord, W.P. & Mertz, L. (2006) A molecular phylogeny of tortoises (Testudines: Testudinidae) based on mitochondrial and nuclear genes. Molecular Phylogenetics and Evolution 40(2006): 517–531.

Loope, L.L. Hamann, O. & Stone, C.P. (1987) Comparative conservation biology of oceanic archipelagoes Hawaii and the Galápagos. BioScience 38(4): 272-282.

Márquez, C. Wiedenfeld, D.A., Snell, H.L., Fritts, T., MacFarland, C., Tapia, W., & Naranjo, S. (2004) Population status of Giant Land Tortoises (Geochelone spp., Chelonya: Testudinae) from the Galapagos Islands. Ecología Aplicada 3(1-2): 98-111.

MacFarland, Craig G., Villa, José and Toro, Basilio. (1974). The Galápagos giant tortoises (Geochelone elephantopus) part II: conservation methods. Biological Conservation 6(2): 198-212.

Miller, Joshua M. et al. (2017). Identification of Genetically Important Individuals of the Rediscovered Floreana Galápagos Giant Tortoise (Chelonoidis elephantopus) Provide Founders for Species Restoration Program. Scientific Reports 7: 11471.

Miller, Joshua M. et al. (2018). Genetic Pedigree Analysis of the Pilot Breeding Program for the Rediscovered Galapagos Giant Tortoise from Floreana Island. Journal of Heredity. https://doi.org/10.1093/jhered/esy010 [Abstract]

Moll, D., Brown, L. E., & Resetar, A. (2020). Origins of the Extinct, Subfossil Galápagos Giant Tortoises (Chelonoidis niger) of the Post Office Lava Tube (Inferior) of Floreana Island: Voluntary or Accidental Occupancy? Tropical Natural History 20(2): 134-143.

Olson, Storrs L. (2015). More on the status of Testudo nigra Quoy and Gaimard and Testudo nigrita Duméril and Bibron as nomina dubia for Galapagos tortoises (Testudines: Testudinidae). Proceedings of the Biological Society of Washington 128(4): 204-208. [Abstract]

Olson, Storrs L. and Humphrey, J. R. (2017). The island of origin of Richard Harlan's Galapagos tortoise Testudo elephantopus. Archives of Natural History 44(1): 110-117. [Abstract]

Olson, Storrs L. and David, Normand. (2014). The gender of the tortoise genus Chelonoidis Fitzinger, 1835 (Testudines: Testudinidae). Proceedings of the Biological Society of Washington 126(4): 393-394.

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Poulakakis, Nikos; Glaberman, Scott; Russello, Michael; Beheregaray, Luciano B.; Ciofi, Claudio; Powell, Jeffrey R.; Caccone, Adalgisa. (2008). Historical DNA analysis reveals living descendants of an extinct species of Galapagos tortoise. Proceedings of the National Academy of Sciences 105(40): 15464-15469.

Poulakakis, N., Russello, M., Geist, D. and Caccone, A. 2012. Unravelling the peculiarities of island life: vicariance, dispersal, and the diversification of the extinct and extant giant Galápagos tortoises. Molecular Ecology 21: 160–173.

Poulakakis, Nikos et al. (2020). Colonization history of Galapagos giant tortoises: Insights from mitogenomes support the progression rule. Journal of Zoological Systematics and Evolutionary Research. doi: https://doi.org/10.1111/jzs.12387 [Abstract]

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Pritchard, Peter Charles Howard. (1996). The Galapagos tortoises: Nomenclatural and survival status. Chelonian research monographs No. 1. Chelonian Research Foundation.

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http://reptile-database.reptarium.cz/species?genus=Chelonoidis&species=niger

https://extinctanimals.proboards.com/thread/15693/chelonoidis-elephantopus-floreana-giant-tortoise

 

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