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Chelys patagonica Wieland 1923

PaleoDB taxon number: 105266

The specimen was considered lost, but Joyce & Faux (2008) were able to re-locate it and describe it.

Full reference: G. R. Wieland. 1923. A new Parana pleurodiran. American Journal of Science 25:1-14

Belongs to Testudinidae according to M. S. de la Fuente et al. 2018

Sister taxa: Achilemys, Agrionemys, Aldabrachelys, Anhuichelys, Astrochelys, Cachuga, Caryoderma, Centrochelys, Cheirogaster, Chelone, Chelonoidis, Chersina, Cylindraspis, Damonia, Dipsochelys, Emys sombrerensis, Ergilemys, Eurotestudo, Floridemys, Floridemys hurdi, Fontainechelon, Geochelone, Geochelone (Chelonoidis), Geochelone (Hesperotestudo) equicomes, Gigantochersina, Gopherus, Gopherus praecedens, Hesperotestudo, Homopus, Impregnochelys, Indotestudo, Juvemys, Kansuchelys, Kinixys, Malacochersus, Manouria, Megalochelys, Mesochersus, Miotestudo, Namibchersus, Nicoria, Palaeoemys, Paleotestudo, Pelorochelon, Psammobates, Pyxis, Sinohadrianus, Stigmochelys, Stylemys, Stylemys calaverensis, Taraschelon, Testudininae, Testudininei, Testudinites sellovii, Testudo, Testudo annae, Testudo atascosae, Testudo castrensis, Testudo cultrata, Testudo exornata, Testudo formosa, Testudo francisi, Testudo hayi, Testudo klettiana, Testudo laticaudata, Testudo louisekressmani, Testudo luciae, Testudo ocalana, Testudo paranensis, Testudo peragrans, Testudo quadratus, Testudo undata, Titanochelon

Type specimen: YPM 351, a partial shell. Its type locality is Near Puerto Militar, Bahia Blanca (Wieland's locality), which is in a Neogene terrestrial horizon in Argentina.