Geoemydidae

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Family of turtles

Not to be confused with Geomyidae.

Geoemydidae Temporal range: Late Cretaceous - Present
Ornate wood turtle Rhinoclemmys pulcherrima manni
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Cryptodira
Superfamily:	Testudinoidea
Family:	Geoemydidae Theobald, 1868
Synonyms
Geoemydidae Theobald 1868:9[1] Batagurina Gray 1869:185[2] Bataguridae Gray 1870:17[3]

The Geoemydidae (formerly known as Bataguridae) are one of the largest and most diverse families^[4] in the order Testudines (turtles), with about 70 species. The family includes the Eurasian pond and river turtles and Neotropical wood turtles.

Contents

• 1 Characteristics
• 2 Ecology
• 3 Systematics and evolution
  • 3.1 Subfamilies and genera
• 4 Conservation
• 5 References
• 6 External links

Characteristics[edit]

Geoemydidae are turtles of various sizes (from about 10 to 80 cm (4 to 30 in) in length) with often a high degree of sexual dimorphism. They usually have webbed toes, and their pelvic girdles articulate with their plastrons flexibly. Their necks are drawn back vertically. Their carapaces have 24 marginal scutes. The plastron is composed of 12 scutes and has no mesoplastron; the pectoral and abdominal scutes contact the marginal scutes.

Some other features include a single articulation between the fifth and sixth cervical vertebrae, the lack of a hyomandibular branch of the facial nerve, and an epipterygoid bone in the skull.

Ecology[edit]

Geoemydidae live in tropics and subtropics of Asia, Europe and North Africa; the only genus in Central and South America is Rhinoclemmys. Their habitats include freshwater ecosystems, coastal marine areas, and tropical forests. Most are herbivorous, but some are omnivorous or carnivorous species. In mating, the males are usually much more active than females. A relatively small number of eggs per clutch is common, produced several times a year. Some species have a temperature-dependent sex determination system, while others possess different sex chromosomes; one known species (Siebenrockiella crassicolis) exhibits XX/XY sex determination, while another species (Pangshura smithii) exhibits ZZ/ZW sex determination.^[5]

About 70% of the extant species have been reported to be in endangered or vulnerable condition.

Systematics and evolution[edit]

Traditional systematics placed the geoemydids in the family Emydidae as the subfamily Batagurinae. In the 1980s, the subfamily was elevated to the family status and renamed to Geoemydidae according to the ICZN rules.

Most fossil and molecular data support their close relationship to the family Testudinidae.

The intrafamilial taxonomy is not well established yet, due to the large number and diversity of species. The family is usually divided into two subfamilies and 19 genera.^[4] Several species are known to give viable hybrids, which makes the systematics even more complicated.^[6]

Subfamilies and genera[edit]

The following genera are classified under Geoemydidae.^[4]

• Family Geoemydidae
  • Genus †Banhxeochelys
  • Genus †Duboisemys
  • Subfamily Geoemydinae
    • Genus Batagur (six species, including part of Kachuga)
    • Genus Cuora, Asian box turtle (10 species) (including Cistoclemmys)
    • Genus Cyclemys (seven species)
    • Genus Geoclemys (monotypic genus)
    • Genus Geoemyda (two species)
    • Genus Hardella (monotypic genus)
    • Genus Heosemys (formerly in Geoemyda)
    • Genus Leucocephalon (formerly in Geoemyda and Heosemys)
    • Genus Malayemys (three species)
    • Genus Mauremys, pond turtles (including Annamemys, Cathaiemys and Emmenia)
    • Genus Melanochelys (two species)
    • Genus Morenia (two species)
    • Genus Notochelys (monotypic genus)
    • Genus Orlitia (monotypic genus)
    • Genus Pangshura (four species) (formerly in Kachuga)
    • Genus Sacalia, "eyed" turtles
    • Genus Siebenrockiella (two species, one subgenus Panyaenemys, formerly under Heosemys)
    • Genus Vijayachelys, cane turtle (formerly in Geoemyda and Heosemys)
  • Subfamily Rhinoclemmydinae
    • Genus Rhinoclemmys, Neotropical wood turtles

Conservation[edit]

As of the early 2013, six species of the family Geoemydidae are on the CITES Appendix I, and 30 more are on the treaty's Appendix II. A joint China-US proposal for a March 2013 CITES participants' conference seeks to add 15 more Geoemydidae species to the convention's Appendix II.^{[7] [8]}

References[edit]

1. ^ Theobald, William, Jr. 1868. Catalogue of Reptiles in the Museum of the Asiatic Society of Bengal. Journal of the Asiatic Society, Extra Number, 88 pp.
2. ^ 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.
3. ^ Gray, John Edward. 1870. Supplement to the Catalogue of Shield Reptiles in the Collection of the British Museum. Part I. Testudinata (Tortoises). London: British Museum, 120 pp.
4. ^ ^{a b c} 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, "Turtles of the World, 2012 update: annotated checklist of taxonomy, synonymy, distribution, and conservation status" (PDF). Archived from the original (PDF) on 2013-06-16. Retrieved 2014-04-19.
5. ^ Badenhorst, Daleen; Stanyon, Roscoe; Engstrom, Tag; Valenzuela, Nicole (2013-04-01). "A ZZ/ZW microchromosome system in the spiny softshell turtle, Apalone spinifera, reveals an intriguing sex chromosome conservation in Trionychidae". Chromosome Research. 21 (2): 137–147. doi:10.1007/s10577-013-9343-2. ISSN 1573-6849. PMID 23512312. S2CID 14434440.
6. ^ Buskirk, James R.; Parham, James F. & Feldman, Chris R. (2005): On the hybridisation between two distantly related Asian turtles (Testudines: Sacalia × Mauremys). Salamandra 41: 21-26. PDF fulltext^{[permanent dead link]}
7. ^ "convention On International Trade in Endangered Species of Wild Fauna and Flora: Sixteenth meeting of the Conference of the parties, Bangkok (Thailand), 3-14 March 2013. Consideration of Proposals for Amendment of Appendices I and II (CoP16 Prop. 32)" (PDF). Archived from the original (PDF) on 2013-02-22. Retrieved 2013-03-04.
8. ^ Dinny McMahon, China Backs Tortoise in Race to Protect Endangered Species, 2013-03-04

External links[edit]

Wikispecies has information related to Geoemydidae.

Wikimedia Commons has media related to Geoemydidae.

• Phillip Q. Spinks; H. Bradley Shaffer; John B. Iverson; William P. McCord. "Phylogenetic hypotheses for the turtle family Geoemydidae" (PDF). Archived from the original (PDF) on 2006-09-05.
• Geoemydidae (all species) at The Reptile Database

v t e Family Geoemydidae
Kingdom: Animalia Phylum: Chordata Class: Reptilia Subclass: Anapsida Order: Testudines Suborder: Cryptodira Superfamily: Testudinoidea Family: Geoemydidae
Genera	Species of the family Geoemydidae
†Banhxeochelys	†Banhxeochelys trani
Batagur	Burmese roofed turtle Northern river terrapin Painted terrapin Red-crowned roofed turtle Southern river terrapin Three-striped roofed turtle
Cuora	Amboina box turtle Bourret's box turtle Indochinese box turtle McCord's box turtle Keeled box turtle Pan's box turtle Southern Vietnamese box turtle Golden coin turtle Vietnamese three-striped box turtle Yellow-headed box turtle Chinese box turtle Yunnan box turtle Zhou's box turtle
Cyclemys	Asian leaf turtle Assam leaf turtle Eastern black-bridged leaf turtle Enigmatic leaf turtle Myanmar brown leaf turtle Oldham's leaf turtle Western black-bridged leaf turtle
†Echmatemys	†Echmatemys septaria †Echmatemys stevensoniana †Echmatemys wyomingensis
Geoclemys	Black pond turtle
Geoemyda	Black-breasted leaf turtle Ryukyu black-breasted leaf turtle
Hardella	Brahminy river turtle
Heosemys	Arakan forest turtle Giant Asian pond turtle Spiny turtle Yellow-headed temple turtle
Leucocephalon	Sulawesi forest turtle
Malayemys	Malayan snail-eating turtle Mekong snail-eating turtle Khorat snail-eating turtle
Mauremys	Balkan pond turtle Caspian turtle Chinese pond turtle Chinese stripe-necked turtle Japanese pond turtle Red-necked pond turtle Spanish pond turtle Vietnamese pond turtle Yellow pond turtle
Melanochelys	Indian black turtle Tricarinate hill turtle
Morenia	Burmese eyed turtle Indian eyed turtle
Notochelys	Malayan flat-shelled turtle
Orlitia	Malaysian giant turtle
Pangshura	Assam roofed turtle Brown roofed turtle Indian roofed turtle Indian tent turtle †Pangshura tatrotia
Rhinoclemmys	Black wood turtle Brown wood turtle Colombian wood turtle Furrowed wood turtle Large-nosed wood turtle Maracaibo wood turtle Mexican spotted wood turtle Painted wood turtle Spot-legged wood turtle †Rhinoclemmys panamaensis
Sacalia	Beale's eyed turtle Four-eyed turtle
Siebenrockiella	Black marsh turtle Philippine forest turtle
Vijayachelys	Cane turtle
Phylogenetic arrangement of turtles based on turtles of the world 2017 update: Annotated checklist and atlas of taxonomy, synonymy, distribution, and conservation status. †=Extinct.

v t e Testudines
Kingdom: Animalia Phylum: Chordata Class: Reptilia Subclass: Anapsida Order: Testudines
Suborder	Superfamily Family Genus
Cryptodira	Chelonioidea (Sea turtles) Cheloniidae †Allopleuron Caretta †Carolinochelys Chelonia †Eochelone Eretmochelys †Gigantatypus †Glarichelys †Itilochelys Lepidochelys †Mexichelys †Miocaretta Natator †Pacifichelys †Syllomus †Tasbacka Dermochelyidae †Arabemys †Bouliachelys †Corsochelys †Cosmochelys Dermochelys †Eosphargis †Mesodermochelys †Psephophorus   †Alienochelys †Berruchelus †Euclastes †Peritresius †Procolpochelys †Protosphargis †Puppigerus Kinosternoidea Dermatemydidae Dermatemys Kinosternidae Claudius †Hoplochelys Kinosternon Staurotypus Sternotherus Testudinoidea Emydidae Chrysemys Clemmys Deirochelys Emys Actinemys Emydoidea Glyptemys Graptemys Malaclemys Pseudemys Terrapene Trachemys Geoemydidae Batagur †Banhxeochelys Cuora Cyclemys Geoclemys Geoemyda Hardella Heosemys Leucocephalon Malayemys Mauremys Melanochelys Morenia Notochelys Orlitia Pangshura Rhinoclemmys Sacalia Siebenrockiella Vijayachelys  Platysternidae Platysternon Tortoises Aldabrachelys Astrochelys Centrochelys Chelonoidis Chersina Cylindraspis Geochelone Gopherus †Hadrianus †Hesperotestudo Homopus Indotestudo Kinixys Malacochersus Manouria †Megalochelys Psammobates Pyxis Stigmochelys †Stylemys Testudo Trionychia Carettochelyidae †Allaeochelys †Anosteira Carettochelys Trionychidae Amyda Apalone †Axestemys Chitra Cyclanorbis Cycloderma Dogania †Gilmoremys †Hutchemys †Khunnuchelys Lissemys Nilssonia Palea †Palaeoamyda Pelochelys Pelodiscus Rafetus Trionyx   †Basilochelys †Sinaspideretes †Baenoidea †Baenidae †Arvinachelys †Baena †Cedrobaena †Chisternon †Denazinemys †Gamerabaena †Neurankylus †Palatobaena †Peckemys †Plesiobaena †Pleurosternidae †Dinochelys †Dorsetochelys †Glyptops †Pleurosternon †Selenemys   Chelydridae †Acherontemys Chelydra †Chelydrops †Chelydropsis †Emarginachelys †Macrocephalochelys Macrochelys †Planiplastron †Protochelydra †Eurysternidae †Achelonia †Chelonides †Eurysternum †Hydropelta †Idiochelys †Palaeomedusa †Parachelys †Macrobaenidae †Anatolemys †Aurorachelys †Kirgizemys †Osteopygis †Yakemys †Nanhsiungchelyidae †Anomalochelys †Basilemys †Jiangxichelys †Protostegidae †Archelon †Atlantochelys †Atlantochelys †Calcarichelys †Cratochelone †Desmatochelys †Iserosaurus †Notochelone †Ocepechelon †Pneumatoarthrus †Protostega †Rhinochelys †Santanachelys †Terlinguachelys †Sinemydidae †Jeholochelys †Liaochelys †Manchurochelys †Ordosemys †Sinemys †Thalassemydidae †Neusticemys †Palaeomedusa †Thalassemys   †Adocus †Angolachelys †Argillochelys †Bashuchelys †Brodiechelys †Ctenochelys †Compsemys †Hoyasemys †Larachelus †Leyvachelys †Plesiochelys †Toxochelys †Uluops †Xinjiangchelys
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 †Chubutemys †Hispaniachelys †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. See also List of Testudines families

Taxon identifiers	Wikidata: Q446640 Wikispecies: Geoemydidae BOLD: 152912 EoL: 8128 Fauna Europaea: 54068 Fauna Europaea (new): e5204723-403b-4f0f-93c0-4bf2c8c38e90 Fossilworks: 276087 GBIF: 5463 iNaturalist: 39886 IRMNG: 105314 ITIS: 948953 NCBI: 328320 Plazi: 726CA836-1A1F-D038-FF4B-FAE93239FA3E uBio: 5457149 WoRMS: 999897

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