Trionychia

Trionychia
The spiny softshell turtle a species of the Trionychia superfamily
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Cryptodira
Clade:	Polycryptodira
Superfamily:	Trionychia Hummel, 1929[1]
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. They are found throughout the temperate regions of the world.

Systematics

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

• Family Carettochelyidae
  • Subfamily Carettochelyinae
    • Genus Carettochelys
• Family Trionychidae
  • Subfamily Plastomeninae ^[2] (fossil)
  • 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

The eastern mud turtle (Kinosternon subrubrum) is a primitive relative of the true softshells which still has a typical hard turtle shell

References

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 2012-01-22.

External links

• Haaramo, Mikko (2008): Mikko's Phylogeny Archive - Trionychoidea. Version of 2008-MAR-11. Retrieved 2008-MAY-06.