Trisha Shetty (Editor)

Trionychia

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Kingdom
  
Animalia

Order
  
Testudines

Clade
  
Polycryptodira

Higher classification
  
Cryptodira

Phylum
  
Chordata

Suborder
  
Cryptodira

Scientific name
  
Trionychia

Rank
  
Superfamily

Trionychia httpsuploadwikimediaorgwikipediacommonsthu

Clutch size
  
Cantor's giant softshell turtle: 24 – 70

Lower classifications
  
Trionychidae, Chinese softshell t

Trionychia is a superfamily of turtles which encompasses the species that are commonly referred to as softshelled turtles as well as some others. They are found throughout the temperate regions of the world.

It traditionally consisted of a single family, two subfamilies, and 14 genera. However, more recently it was realized that the supposed "Kinosternoidea" are actually early offshoots of the Trionychoidea and not as closely related among each other as it was believed. These two families lack the characteristic trionychoid apomorphies, but possess some highly derived characters of their own, which they moreover evolved independently from each other.

Systematics

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

  • Basal and incertae sedis
  • Genus †Hoplochelys (fossil)
  • Genus †Emarginachelys (fossil)
  • Family Carettochelyidae
  • Subfamily Carettochelyinae
  • Genus Carettochelys
  • Family Trionychidae
  • Subfamily Plastomeninae (fossil)
  • Subfamily Cyclanorbinae
  • Genus Cyclanorbis
  • Genus Cycloderma
  • Genus Lissemys
  • Subfamily Trionychinae
  • Genus Amyda
  • Genus Apalone
  • Genus Chitra
  • Genus Dogania
  • Genus Nilssonia
  • Genus Palea (genus)
  • Genus Pelochelys
  • Genus Pelodiscus
  • Genus Rafetus
  • Genus Trionyx
  • References

    Trionychia Wikipedia