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Kinkonychelys

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Extinct genus of turtles

Kinkonychelys Temporal range:Late Cretaceous70.6–66 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Pleurodira
Family:	†Bothremydidae
Tribe:	†Kurmademydini
Genus:	†Kinkonychelys Gaffneyet al., 2009
Species
Kinkonychelys rogersi

Kinkonychelys ("Lac Kinkony Study Area turtle") is anextinct genus ofside-necked turtle which existed inMadagascar during theLate Cretaceous Epoch.^[1] It contains the single speciesKinkonychelys rogersi, named in honor of its discoverer,Raymond R. Rogers.^[1] The genus and species arebased on UA 9748, a nearly complete skull, which represents the first turtle skull described from the pre-Holocene era in Madagascar.^[1] A number of isolated skull and jaw bones have also been assigned toK. rogersi. These specimens were found in rocks of theMaastrichtian-ageMaevarano Formation in theMahajanga Basin of northwestern Madagascar.^[1] Another specimen,FMNH PR 2446, is speculated to represent another species, currently known asKinkonychelys sp., but consensus on its distinction fromK. rogersi remains unclear.^[1]

The Maevarano Formation is a nonmarine rock formation that was deposited under aseasonal,semi-arid climate. A diverse vertebrate assemblage is known from the formation, including fishes, frogs, other turtles, lizards, snakes,crocodyliforms,dinosaurs, birds, and mammals. The rocks of the formation can be subdivided into several members. UA 9748 was found in aclaystone bed from an unnamed upper member; this member has also produced abundant and well-preserved fossils ofray-finned fish, crocodyliforms, and dinosaurs. The other specimens assigned toKinkonychelys were found in the older Anembalemba Formation.^[1]

Kinkonychelys is classified as a member of theKurmademydini group in the familyBothremydidae, together with the Late Cretaceous turtlesSankuchemys andKurmademys, fromIndia.^[1] The classification ofKinkonychelys into this group has helped to support the theory that the island of Madagascar and the subcontinent India were connected to each other prior to the end of the late Cretaceous period.^[1]

References

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^^a ^b ^c ^d ^e ^f ^g ^hGaffney, Eugene S.; Krause, D.W.; Zalmout, I.S. (2009)."Kinkonychelys, a new side-necked turtle (Pelomedusoides: Bothremydidae) from the Late Cretaceous of Madagascar"(PDF).American Museum Novitates (3662):1–25.doi:10.1206/672.1.S2CID 54740846.

External links

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Kinkonychelys at thePaleobiology Database

Taxon identifiers
Kinkonychelys	Wikidata:Q6413930 Wikispecies:Kinkonychelys GBIF:8645801 IRMNG:1474156 Paleobiology Database:153866

Testudines

Kingdom:Animalia
Phylum:Chordata
Class:Reptilia
Clade:Diapsida
Order:Testudines

Genus

Chelonioidea
(Sea turtles)

Cheloniidae	†Allopleuron Caretta †Carolinochelys Chelonia †Eochelone Eretmochelys †Gigantatypus †Glarichelys †Itilochelys Lepidochelys †Mexichelys †Miocaretta Natator †Pacifichelys †Syllomus †Tasbacka
Dermochelyidae	†Arabemys †Corsochelys †Cosmochelys Dermochelys †Eosphargis †Mesodermochelys †Psephophorus
	†Euclastes †Peritresius †Procolpochelys †Protosphargis †Puppigerus

Kinosternoidea

Dermatemydidae	Dermatemys
Kinosternidae	Claudius †Hoplochelys Kinosternon Staurotypus Sternotherus

Testudinoidea

Emydidae	†Acherontemys Chrysemys Clemmys Deirochelys Emys Actinemys Emydoidea Glyptemys Graptemys Malaclemys Pseudemys Terrapene Trachemys †Wilburemys
Geoemydidae	Batagur †Banhxeochelys Cuora Cyclemys Geoclemys Geoemyda Hardella Heosemys Leucocephalon Malayemys Mauremys Melanochelys Morenia Notochelys Orlitia Pangshura Rhinoclemmys Sacalia Siebenrockiella Vijayachelys
Platysternidae	Platysternon
Testudinidae	Aldabrachelys Astrochelys Centrochelys Chelonoidis Chersina Cylindraspis †Cymatholcus †Floridemys Geochelone Gopherus †Hadrianus †Hesperotestudo Homopus Indotestudo Kinixys Malacochersus Manouria †Megalochelys †Oligopherus Psammobates Pyxis †Solitudo Stigmochelys †Stylemys Testudo

Trionychia

Carettochelyidae	†Allaeochelys †Anosteira Carettochelys
Trionychidae	Amyda Apalone †Axestemys Chitra Cyclanorbis Cycloderma †Drazinderetes Dogania †Gilmoremys †Hutchemys †Khunnuchelys Lissemys Nilssonia Palea †Palaeoamyda Pelochelys Pelodiscus Rafetus Trionyx
	†Basilochelys †Sinaspideretes

Chelydridae	Chelydra †Chelydrops †Chelydropsis †Emarginachelys †Macrocephalochelys Macrochelys †Planiplastron †Protochelydra
†Nanhsiungchelyidae	†Anomalochelys †Basilemys †Jiangxichelys
†Protostegidae	†Alienochelys †Archelon †Atlantochelys †Bouliachelys †Calcarichelys †Cratochelone †Desmatochelys †Iserosaurus †Notochelone †Ocepechelon †Pneumatoarthrus †Protostega †Rhinochelys †Santanachelys †Terlinguachelys
	†Adocus †Argillochelys †Bashuchelys †Ctenochelys †Prionochelys †Toxochelys

Pleurodira

†Araripemydidae	†Araripemys
†Bothremydidae	†Araiochelys †Arenila †Azabbaremys †Bothremys †Cearachelys †Chedighaii †Chupacabrachelys †Eotaphrosphys †Foxemys †Galianemys †Ilatardia †Inaechelys †Itapecuruemys †Jainemys †Kinkonychelys †Kurmademys †Labrostochelys †Nigeremys †Phosphatochelys †Polysternon †Puentemys †Rosasia †Rhothonemys †Sankuchemys †Taphrosphys †Ummulisani †Zolhafah
Chelidae	Acanthochelys Chelodina Chelus Elseya Elusor Emydura Hydromedusa †Lomalatachelys Mesoclemmys Myuchelys Phrynops Platemys †Prochelidella Pseudemydura Rheodytes Rhinemys †Yaminuechelys
Pelomedusidae	Pelomedusa Pelusios
Podocnemididae	†Albertwoodemys †Bauruemys †Brontochelys †Caninemys †Carbonemys †Cerrejonemys †Cordichelys Erymnochelys †Lapparentemys †Latentemys Peltocephalus Podocnemis †Stupendemys
†Sahonachelyidae	†Sahonachelys †Sokatra

	†Caribemys †Caririemys †Tacuarembemys

Phylogenetic arrangement of turtles based onTurtles of the World 2017 Update: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status. † = extinct.

See alsoList of Testudines families

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