Trionychia

Trionychia ; Temporal range: Late Jurassic to recent, 161.2?0 Ma Pre? ? O S D C P T J K Pg N
	The spiny softshell turtle (Trionychidae)
	The pig-nosed turtle (Carettochelyidae)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Cryptodira
Clade :	Polycryptodira
Superfamily:	Trionychia ; Hummel, 1929
Families
	Carettochelyidae ; Trionychidae ; and see text
Synonyms
	Trionychoidea ;

Trionychia is a superfamily of turtles which encompasses the species that are commonly referred to as softshelled turtles as well as some others. The group contains two families, Carettochelyidae , which has only one living species, the pig-nosed turtle ( Carettochelys insculpta ) native to New Guinea and Northern Australia, and Trionychidae , the softshelled turtles, containing numerous species native to Asia, North America and Africa. These families likely diverged during the late Jurassic. ^[2] The oldest known stem-trionychian is Sinaspideretes from the Late Jurassic of China. ^[3]^[4]

Systematics [ edit ]

Except for those not assigned to a family, only living genera are listed here.

Family Carettochelyidae
- Subfamily Carettochelyinae
  - Genus Carettochelys
Pan-Trionychidae
- Family Plastomenidae ^[5] (fossil)
- Family Trionychidae
  - Subfamily Cyclanorbinae
    - Genus Cyclanorbis
    - Genus Cycloderma
    - Genus Lissemys
  - Subfamily Trionychinae
    - Genus Amyda
    - Genus Apalone
    - Genus Chitra
    - Genus Dogania
    - Genus Nilssonia
    - Genus Palea
    - Genus Pelochelys
    - Genus Pelodiscus
    - Genus Rafetus
    - Genus Trionyx

References [ edit ]

^ Rhodin 2011 , p. 000.204
^ Pereira, Anieli G.; Sterli, Juliana; Moreira, Filipe R.R.; Schrago, Carlos G. (August 2017). "Multilocus phylogeny and statistical biogeography clarify the evolutionary history of major lineages of turtles" . Molecular Phylogenetics and Evolution . 113 : 59?66. doi : 10.1016/j.ympev.2017.05.008 . hdl : 11336/41137 . ISSN 1055-7903 . PMID 28501611 .
^ Ouyang, Hui; Li, Lu; Tong, Haiyan (July 2014). "A revision of Sinaspideretes wimani Young & Chow, 1953 (Testudines: Cryptodira: Trionychoidae) from the Jurassic of the Sichuan Basin, China". Geological Magazine . 151 (4): 600?610. Bibcode : 2014GeoM..151..600T . doi : 10.1017/S0016756813000575 . ISSN 0016-7568 . S2CID 128423062 .
^ Evers, Serjoscha W.; Benson, Roger B. J. (January 2019). Smith, Andrew (ed.). "A new phylogenetic hypothesis of turtles with implications for the timing and number of evolutionary transitions to marine lifestyles in the group" . Palaeontology . 62 (1): 93?134. doi : 10.1111/pala.12384 . S2CID 134736808 .
^ One or more basal lineages formerly believed to be a distinct family

Bibliography

Rhodin, Anders G.J.; van Dijk, Peter Paul; Inverson, 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 . 5 . Archived from the original (PDF) on 2012-01-31.

[Rhodin11-1] Rhodin 2011 , p. 000.204

[2] Pereira, Anieli G.; Sterli, Juliana; Moreira, Filipe R.R.; Schrago, Carlos G. (August 2017). "Multilocus phylogeny and statistical biogeography clarify the evolutionary history of major lineages of turtles" . Molecular Phylogenetics and Evolution . 113 : 59?66. doi : 10.1016/j.ympev.2017.05.008 . hdl : 11336/41137 . ISSN 1055-7903 . PMID 28501611 .

[3] Ouyang, Hui; Li, Lu; Tong, Haiyan (July 2014). "A revision of Sinaspideretes wimani Young & Chow, 1953 (Testudines: Cryptodira: Trionychoidae) from the Jurassic of the Sichuan Basin, China". Geological Magazine . 151 (4): 600?610. Bibcode : 2014GeoM..151..600T . doi : 10.1017/S0016756813000575 . ISSN 0016-7568 . S2CID 128423062 .

[4] Evers, Serjoscha W.; Benson, Roger B. J. (January 2019). Smith, Andrew (ed.). "A new phylogenetic hypothesis of turtles with implications for the timing and number of evolutionary transitions to marine lifestyles in the group" . Palaeontology . 62 (1): 93?134. doi : 10.1111/pala.12384 . S2CID 134736808 .

[5] One or more basal lineages formerly believed to be a distinct family

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