Testudinata
Cryptodira
 Pleurodira

 Testudinidae

Testudinata sunt cladus omnium tetrapodorum quibus est vera testa testudinea. Qui grex ambos comprehendit testudines hodiernos multosque ex eorum cognatis exstinctis testam ferentibus. Haec reptilia ex Triassico superiori abhinc annorum ducentos viginti milliones exorta sunt.

Corpus testa tectum est, quae e carapace plastroque constitit, stratibus osseis et corneis; carapax e scutis trium generum: marginalia, vertebralia, costalia. E testae parte antica, caput et crura anteriora exierunt, parte postica cauda et crura posteriora, columna vertebralis cum testa parte dorsuali coniuncta est.

Aures eis non fuerunt, oculi sicut apud alia reptilia tres palpebras habuerunt, unam superiorem et unam inferiorem et unam nictantem; nares per canalem cum ore conectae sunt.

Cladogramma 
 ─o Ordo Testudinata Linnaeus, 1758
  ├── species proganochelys Quenstedti
  └─o casichelydia
    ├─o subordo pleurodira Cope, 1865
    │ ├─o familia chelidae
    │ └─o infraordo pelomedusoides
    │   └─o superfamilia pelomedusoidea
    │     ├─o familia pelomedusidae
    │     │ ├─o species pelomedusa subrufa
    │     │ └─o genus pelusios
    │     └─o podocnemoidea
    │       └─o podocnemididae
    │         ├─o species erymnochelys Madagascariensis
    │         ├─o species peltocephalus Dumerilianus
    │         └─o genus podocnemis
    └─o subordo cryptodira Cope, 1868

 familia chelidae
 subfamilia austrochelinae
 genus acanthochelys
 genus batrachemys
 genus bufocephala
 species chelus fimbriatus
 genus mesoclemmys
 genus phrynops
 genus platemys
 genus ranacephala
 genus rhinemys
 subfamilia chelidinae
 genus chelodina
 genus elseya
 genus elusor
 genus emydura
 genus macrochelodina
 genus pseudemydura
 genus rheodytes
 genus hydromedusa (unicum subfamiliae hydromedusinarum)
 subordo cryptodira Cope, 1868
 familia chelydridae
 ?species platysternon megacephalum (unica familiae Platysternidae)
 subfamilia chelydrinae
 species chelydra serpentina
 species macroclemmys Temminckii
 procoelocryptodira
 infraordo chelonioidea
 superfamilia dermochelyoidea
 familia dermochelyidae
 species dermochelys coriacea
 familia cheloniidae
 species caretta caretta
 genus lepidochelys
 species lepidochelys Kempii
 species lepidochelys olivacea
 subfamilia cheloniinae
 genus chelonia
 species chelonia Agassizi
 species chelonia mydas
 species eretmochelys imbricata
 species natator depressus
 chelomacryptodira
 infraordo trionychia
 superfamilia kinosternoidea
 familia dermatemydidae
 species dermatemys mawii
 familia kinosternidae
 subfamilia kinosterninae
 genus kinosternon
 genus sternotherus
 subfamilia staurotypinae
 genus claudius
 genus staurotypus
 superfamilia trionychoidea
 familia carettochelyidae
 species carettochelys insculpta
 familia trionychidae
 subfamilia cyclanorbinae
 genus cyclanorbis
 genus cycloderma
 genus lissemys
 subfamilia trionychinae
 genus amyda
 genus apalone
 genus aspideretes
 genus chitra
 genus dogania
 genus nilssonia
 genus palea
 genus pelochelys
 genus pelodiscus
 genus rafetus
 genus trionyx
 infraordo testudinoidea
 familia emydidae
 subfamilia deirochelyidae
 genus chrysemys
 genus deirochelys
 genus graptemys
 genus malaclemys
 genus pseudemys
 genus trachemys
 subfamilia emydinae
 genus actinemys
 genus clemmys
 genus emydoidea
 genus emys
 genus glyptemys
 genus terrapene
 familia bataguridae sive geoemydidae
 subfamilia bataguridae
 genus batagur (inclusi quae antea Callagur et Kachuga vocabantur)
 genus chinemys
 genus geoclemys
 genus hardella
 genus hieremys
 genus malayemys
 genus morenia
 genus ocadia
 genus orlitia
 subfamilia geoemydinae
 genus cuora
 genus cyclemys
 genus geoemyda
 genus heosemys
 genus leucocephalon
 genus mauremys
 genus melanochelys
 genus notochelys
 genus rhinoclemmys
 genus sacalia
 genus siebenrockiella
 species vijayachelys silvatica
 familia testudinidae Batsch, 1788

Nexus externi 

 Cheloniophylia (Francogallice)
 Consociatio Italica pro testudinibus (praecipue Italice sed etiam Theodisce et Anglice)
 Testudinum cladogramma et descriptio (Anglice)
 UC Berkeley Museum Palaeontologicum (Anglice)
 Testudinidae Argentinae (Hispanice)
 Testudinum Orbis (Hispanice)

!
Taxa Klein
Taxa 1760
Ordines animalium