Testudinoidea | |
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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 | |
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).
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]
The Geoemydidae are one of the largest and most diverse families in the order Testudines (turtles), with about 70 species. The family includes the Eurasian pond and river turtles and Neotropical wood turtles.
Emydidae is a family of testudines (turtles) that includes close to 50 species in 10 genera. Members of this family are commonly called terrapins, pond turtles, or marsh turtles. Several species of Asian box turtles were formerly classified in the family; however, revised taxonomy has separated them to a different family (Geoemydidae). As currently defined, the Emydidae are entirely a Western Hemisphere family, with the exception of two species of pond turtle.
Heosemys is a genus of freshwater turtles in the family Geoemydidae. The genus Heosemys was split out of the related genus Geoemyda by McDowell in 1964.
Emys is a small genus within the family Emydidae. The genus, consisting primarily of freshwater pond turtles, is endemic to Europe. It is the only genus in the Emydidae outside of North America.
The Cryptodira are a suborder of Testudines that includes most living tortoises and turtles. Cryptodira differ from Pleurodira in that they lower their necks and pull the heads straight back into the shells, instead of folding their necks sideways along the body under the shells' marginals. They include among their species freshwater turtles, snapping turtles, tortoises, softshell turtles, and sea turtles.
The Burmese eyed turtle, also known as the Bengal eyed terrapin, Burmese peacock turtle or swamp turtle, is a species of turtle in the family Geoemydidae of southern Asia.
The big-headed turtle is a species of turtle in the family Platysternidae from Southeast Asia and southern China.
The Rio Grande cooter is a species of turtle in the family Emydidae. The species is native to northeastern Mexico and the adjacent southwestern United States.
Rhinoclemmys is a genus of turtles in the family Geoemydidae, the only genus in the subfamily Rhinoclemmydinae. Member species of the genus are commonly known as the Neotropical wood turtles and are the only geoemydids known from the Americas. As such, they have adapted to a wide range of habitats, which is reflected in the species' common names.
Siebenrockiella crassicollis is a freshwater turtle endemic to Southeast Asia. It is one of two species classified under the genus Siebenrockiella in the family Geoemydidae.
Actinemys is a small genus of turtles in the family Emydidae. The genus is endemic to the west coast of North America. The genus contains two species.
Terrapins are a group of several species of small turtle living in fresh or brackish water. Terrapins do not form a taxonomic unit and may not be closely related. Many belong to the families Geoemydidae and Emydidae.
Melanochelys is a genus of turtles in the family Geoemydidae. Members are found in India, Myanmar, Bangladesh, Sri Lanka and Nepal.
The Sicilian pond turtle is a species of turtle in the family Emydidae. The species is endemic to Sicily.
The Assam leaf turtle is a species of turtle in the family Geoemydidae. The species is native to India, Nepal, Bhutan, and Bangladesh.
The Malayan snail-eating turtle is a species of turtle in Malayemys genus of the family Geoemydidae.
The Tenerife giant tortoise is an extinct species of cryptodire turtle in the family Testudinidae endemic to the island of Tenerife, in the Canary Islands during the Middle Pleistocene.
The Gran Canaria giant tortoise is an extinct species of cryptodire turtle in the family Testudinidae endemic to the island of Gran Canaria, in the Canary Islands.
Centrochelys is a genus of tortoise. It contains one living species, the African spurred tortoise, native to the Sahel and adjacent areas. A number of fossil species have been attributed to this genus, but their placement in the genus is considered equivocal.