Testudinoidea

Testudinoidea is a superfamily within the suborder Cryptodira of the order Testudines. It includes the pond turtles (Family: Emydidae), Asian turtles (Family: Geoemydidae), the monotypic big-headed turtle (Family: Platysternidae), and the tortoises (Family: Testudinidae).

Testudinoidea
Midland painted turtle (Chrysemys picta marginata) a species of the family Emydidae in the Testudinoidea superfamily
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Cryptodira
Clade:	Durocryptodira
Clade:	Pantestudinoidea
Superfamily:	Testudinoidea Fitzinger, 1826[1]
Families
†Wutuchelys Emydidae Geoemydidae †Haichemydidae †Lindholmemydidae Platysternidae †Sinochelyidae Testudinidae

Systematics

A 2021 study found the clade to be divided into two extant groups: Testuguria, containing Geoemydidae and Testudinidae; and Emysternia, containing Emydidae and Platysternidae. The extinct Lindholmemydidae, formerly classified in Testudinoidea, may fall outside the crown group of Testudinoidea, although there is not yet enough evidence for this.^[2]

• Pantestudinoidea
  • †Lindholmemydidae?
  • Testudinoidea
    • †Wutuchelys
    • †Haichemydidae
    • †Sinochelyidae
    • Testuguria
      • Geoemydidae
      • Testudinidae
    • Emysternia
      • Emydidae
      • Platysternidae