Trionychia

Trionychia; Temporal range:Late Jurassicto recent,161.2–0Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Thespiny softshell turtle(Trionychidae)
	Thepig-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 seetext
Synonyms
	Trionychoidea;

Trionychiais asuperfamilyofturtleswhich encompasses thespeciesthat are commonly referred to as softshelled turtles as well as some others. The group contains two families,Carettochelyidae,which has only one living species, thepig-nosed turtle(Carettochelys insculpta) native to New Guinea and Northern Australia, andTrionychidae,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 isSinaspideretesfrom the Late Jurassic of China.^[3]^[4]

Systematics

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

FamilyCarettochelyidae
- SubfamilyCarettochelyinae
  - GenusCarettochelys
Pan-Trionychidae
- FamilyPlastomenidae^[5](fossil)
- FamilyTrionychidae
  - SubfamilyCyclanorbinae
    - GenusCyclanorbis
    - GenusCycloderma
    - GenusLissemys
  - SubfamilyTrionychinae
    - GenusAmyda
    - GenusApalone
    - GenusChitra
    - GenusDogania
    - GenusNilssonia
    - GenusPalea
    - GenusPelochelys
    - GenusPelodiscus
    - GenusRafetus
    - GenusTrionyx

References

^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 fromthe 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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