Cyclanorbis

Genus of turtles

Cyclanorbis Temporal range: Pliocene to recent, 5.332–0 Ma PreꞒ Ꞓ O S D C P T J K Pg N

Senegal flapshell turtle (C. senegalensis)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Cryptodira
Family:	Trionychidae
Subfamily:	Cyclanorbinae
Genus:	Cyclanorbis Gray, 1854^[1]^[2]
Synonyms^[2]
Cryptopus A.M.C. Duméril & Bibron, 1835 Cryptopodus A.H.A. Duméril, 1856 (ex errore) Cyclanosteus Gray, 1856 Tetrathyra Gray, 1865 Baikiea Gray, 1869

Cyclanorbis is a genus of softshell turtles in the family Trionychidae. The genus is endemic to Africa.

Description

In the genus Cyclanorbis the plastron has cutaneous flaps, under which the hind legs can be concealed.^[3]

The genus Cyclanorbis contains the following extant species:^[1]

Nubian flapshell turtle – Cyclanorbis elegans (Gray, 1869)
Senegal flapshell turtle – Cyclanorbis senegalensis (A.M.C. Duméril & Bibron, 1835)

One extinct species is also known from fossil remains: Cyclanorbis turkanensis Meylan et al. 1990, from the Pliocene of Kenya.^[4]

Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Cyclanorbis.

^ ^a ^b Rhodin et al. 2011, p. 000.204
^ ^a ^b Fritz & Havaš 2007, p. 312
^ Boulenger GA (1889). Catalogue of the Chelonians, Rhynchocephalians, and Crocodiles in the British Museum (Natural History). New Edition. London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). x + 311 pp. + Plates I–VI. (Genus Cyclanorbis, pp. 270–271).
^ "Fossilworks: Cyclanorbis turkanensis ". fossilworks.org. Retrieved 17 December 2021.

Rhodin, Anders G.J.; van Dijk, Peter Paul; Iverson, John B.; Shaffer, H. Bradley; Roger, Bour (2011-12-31). "Turtles of the world, 2011 update: Annotated checklist of taxonomy, synonymy, distribution and conservation status" (PDF). Chelonian Research Monographs. 6. Archived from the original (PDF) on 2012-01-31.
Fritz, Uwe; Havaš, Peter (2007-10-31). "Checklist of Chelonians of the World" (PDF). Archived from the original (PDF) on 2011-05-01. Retrieved 2010-12-29.

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

Dermatemydidae	Dermatemys
Kinosternidae	Claudius †Hoplochelys Kinosternon Staurotypus Sternotherus

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

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

†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 on Turtles of the World 2017 Update: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status. † = extinct.

Taxon identifiers
Cyclanorbis	Wikidata: Q776906 Wikispecies: Cyclanorbis ADW: Cyclanorbis BOLD: 190975 CoL: 3XTS EoL: 80239 Fossilworks: 37677 GBIF: 2442585 iNaturalist: 39543 IRMNG: 1008267 ITIS: 208702 NCBI: 227467 Open Tree of Life: 101467 WoRMS: 1440707