Testudinata

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Testudinatans
Temporal range: Late Triassic - Holocene, 210–0 Ma
Proganochelys Quenstedti.jpg
Skeleton of Proganochelys quenstedti, American Museum of Natural History
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Pantestudines
Clade: Testudinata
Klein, 1760
Subgroups

See text

Testudinata is the group of all tetrapods with a true turtle shell. It includes both modern turtles (Testudines) and many of their extinct, shelled relatives (stem-turtles). Though it was first coined as the group containing turtles by Klein in 1760, it was first defined in the modern sense by Joyce and colleagues in 2004. Testudinata does not include the primitive stem-turtle Odontochelys, which only had the bottom half of a shell.[1]

Classification[edit]

The cladogram below follows an analysis by Jérémy Anquetin in 2011.[1]

 Testudinata 

Proterochersis



Proganochelys




Palaeochersis



Australochelys




Kayentachelys



Indochelys



Sichuanchelys



Chengyuchelys



Chuannanchelys



Eileanchelys




Heckerochelys



Condorchelys





Naomichelys



Otwayemys




Mongolochelys


 Meiolaniidae 

Niolamia




Ninjemys



Meiolania







Testudines (modern turtles)







References[edit]

  1. ^ a b Anquetin, J. R. M. (2012). "Reassessment of the phylogenetic interrelationships of basal turtles (Testudinata)". Journal of Systematic Palaeontology 10: 3. doi:10.1080/14772019.2011.558928.  edit