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Chelydridae

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From Wikipedia, the free encyclopedia

Family of turtles

"Snapping turtle" redirects here. For the familiar extant species, Chelydra serpentina, seeCommon snapping turtle.

Chelydrids Temporal range:70.6–0 Ma PreꞒ Ꞓ O S D C P T J K Pg N Late Cretaceous^[1] toRecent

The common snapping turtle (Chelydra serpentina)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Cryptodira
Clade:	Chelydroidea
Family:	Chelydridae Gray, 1831^[2]
Genera
Chelydra Macrochelys †Acherontemys †Chelydrops †Chelydropsis †Emarginachelys †Macrocephalochelys †Planiplastron †Protochelydra
Synonyms^[3]
ChelydraeGray, 1831:4^[2] ChelydridaeSwainson, 1839:113^[4] ChelydradaeGray, 1869:178^[5]

TheChelydridae is afamily ofturtles that has seven extinct and two extantgenera. The extant genera are thesnapping turtles,Chelydra andMacrochelys. Both areendemic to theWestern Hemisphere. The extinct genera areAcherontemys,Chelydrops,Chelydropsis,Emarginachelys,Macrocephalochelys,Planiplastron, andProtochelydra.

Fossil history

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*Chelydropsis murchisoni* fossil remains (left: juvenile; right: adult)

The Chelydridae have a longfossil history, withextinct species reported from North America as well as all over Asia and Europe, far outside their present range. The earliest described chelydrid isEmarginachelys cretacea, known from well-preserved fossils from theMaastrichtian stage of the LateCretaceous ofMontana.^[1] Another well-preserved fossil chelydrid is the LatePaleoceneProtochelydra zangerli fromNorth Dakota.^[6] Thecarapace ofP. zangerli is higher-domed than that of the recentChelydra, a trait conjectured to be associated with the coexistence of large, turtle-eatingcrocodilians. Another genus,Chelydropsis, contains several well-knownEurasian chelydridspecies that existed from theOligocene to thePliocene.^[7] In South America, chelydrids (C. acutirostris) only occupy the northwestern corner of the continent, reflecting their recent arrival from Central America as part of theGreat American Interchange.

Gallery

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Common snapping turtle atTaum Sauk Mountain State Park
Two-year-old captive-raised snapping turtle fromPennsylvania
Female next to can to show size
Skeleton of alligator snapping turtle at theMuseum of Osteology
Female snapping turtle laying eggs (not visible),Pleasant Valley Wildlife Sanctuary,Lenox, Massachusetts
Female laying eggs

References

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^^a ^bEmarginachelys cretacea, Paleobiology Database
^^a ^bGray, John Edward. (1831).Synopsis Reptilium; or Short Descriptions of the Species of Reptiles. Part I.—Cataphracta. Tortoises, Crocodiles, and Enaliosaurians. London: Treuttel, Wurz, and Co., 85 pp. [Published May 1831].
^Turtle Taxonomy Working Group [van Dijk, P.P., Iverson, J.B., Shaffer, H.B., Bour, R., and Rhodin, A.G.J.]. (2012). Turtles of the World, 2012 update: annotated checklist of taxonomy, synonymy, distribution, and conservation status.Chelonian Research Monographs No. 5, pp. 000.243–000.328, doi:10.3854/crm.5.000.checklist.v5.2012,"Archived copy"(PDF). Archived fromthe original(PDF) on 2013-06-16. Retrieved2014-04-19.{{cite web}}: CS1 maint: archived copy as title (link)
^Swainson, William. (1839). On the natural history and classification of fishes, amphibians, and reptiles. Vol. II. In: Lardner, D. (Ed.). The Cabinet Cyclopaedia. Natural History. London: Longman, 452 pp.
^Gray, John Edward. (1869). Notes on the families and genera of tortoises (Testudinata), and on the characters afforded by the study of their skulls.Proceedings of the Zoological Society of London 1869:165–225.
^Danilov G. and J. F. Parham. (2008). A reassessment of some poorly known turtles from the Middle Jurassic of China, with comments on the antiquity of extant turtles.Journal of Vertebrate Paleontology 28(2):306-318
^Böhme, M. (2008). Ectothermic vertebrates (Teleostei, Allocaudata, Urodela, Anura, Testudines, Choristodera, Crocodylia, Squamata) from the Upper Oligocene of Oberleichtersbach (Northern Bavaria, Germany).Courier Forschungsinstitut Senckenberg 260:161-183

External links

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Media related toChelydridae at Wikimedia Commons
Data related toChelydridae at Wikispecies

Turtle familyChelydridae

Kingdom:Animalia
Phylum:Chordata
Class:Reptilia
Order:Testudines
Suborder:Cryptodira
Family:Chelydridae

Genus

Species of the familyChelydridae

Chelydra

†Chelydrops

†Chelydrops stricta

†Chelydropsis

†Emarginachelys

†Emarginachelys cretacea

†Macrocephalochelys

†Macrocephalochelys pontica

Macrochelys

Alligator snapping turtle (synonymized:Apalachicola snapping turtle)
Suwannee snapping turtle

†Planiplastron

†Protochelydra

†Protochelydra zangerli

Phylogenetic arrangement of turtles based onturtles of the world 2017 update: Annotated checklist and atlas of taxonomy, synonymy, distribution, and conservation status. †=Extinct.

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

Taxon identifiers
Chelydridae	Wikidata:Q650212 Wikispecies:Chelydridae ADW:Chelydridae BOLD:34463 CoL:83M EoL:8124 EPPO:1KHELF GBIF:5462 iNaturalist:39680 IRMNG:114441 ITIS:173750 NBN:NHMSYS0000080222 NCBI:8473 Open Tree of Life:587326 Paleobiology Database:37704 WoRMS:1026087