Testudines

E6097

clade taxonomic order

Testudines is the taxonomic order of reptiles that includes all turtles and tortoises, characterized by a bony or cartilaginous shell developed from their ribs.

Observed surface forms (2)

Surface form	Occurrences
Cryptodira	1
Testudinata	1

Statements (53)

Predicate	Object
instanceOf	clade ⓘ taxonomic order ⓘ
class	Reptilia ⓘ
commonName	tortoises ⓘ turtles ⓘ
conservationStatus	many species threatened or endangered ⓘ
distribution	cosmopolitan except polar regions ⓘ
firstAppearance	Late Triassic ⓘ over 200 million years ago ⓘ
habitat	freshwater environments ⓘ marine environments ⓘ terrestrial environments ⓘ
hasCharacteristic	amniote eggs ⓘ body enclosed in dorsal carapace and ventral plastron ⓘ ectothermic metabolism ⓘ girdles located inside rib cage ⓘ internal fertilization ⓘ keratinous beak ⓘ lack of teeth in extant species ⓘ long lifespan in many species ⓘ lungs used for respiration ⓘ oviparous reproduction ⓘ possesses a bony or cartilaginous shell ⓘ ribs fused to shell ⓘ shell develops from ribs ⓘ slow growth rates ⓘ temperature-dependent sex determination in many species ⓘ toothless jaws in modern species ⓘ vertebrae partly fused to shell in many species ⓘ
hasEcologicalRole	carnivores in some species ⓘ herbivores in many ecosystems ⓘ omnivores in many ecosystems ⓘ scavengers ⓘ seed dispersers ⓘ
hasNotableSpecies	Chelonia mydas ⓘ Dermochelys coriacea ⓘ Gopherus agassizii ⓘ Testudo graeca ⓘ
includes	freshwater turtles ⓘ hidden-necked turtles ⓘ sea turtles ⓘ side-necked turtles ⓘ snapping turtles ⓘ softshell turtles ⓘ terrestrial tortoises ⓘ
isExtant	true ⓘ
kingdom	Animalia ⓘ
phylum	Chordata ⓘ
recognizedBy	modern biological taxonomy ⓘ
suborder	Cryptodira ⓘ Pleurodira ⓘ
subphylum	Vertebrata ⓘ
taxonRank	order ⓘ

Referenced by (20)

Full triples — surface form annotated when it differs from this entity's canonical label.

Cryptodira → clade → Testudines ⓘ

this entity surface form: Testudinata

Reptilia → containsExtantGroups → Testudines ⓘ

Testudinoidea → higherTaxon → Testudines ⓘ

Aldabrachelys → order → Testudines ⓘ

Chelonia mydas → order → Testudines ⓘ

Chelonoidis → order → Testudines ⓘ

Chersina → order → Testudines ⓘ

subject surface form: Chersina angulata

Dermochelys coriacea → order → Testudines ⓘ

Manouria → order → Testudines ⓘ

Manouria tortoises → order → Testudines ⓘ

Mojave Desert tortoise → order → Testudines ⓘ

Psammobates → order → Testudines ⓘ

Stigmochelys → order → Testudines ⓘ

subject surface form: Stigmochelys pardalis

Testudinidae → order → Testudines ⓘ

Testudinoidea → order → Testudines ⓘ

tent tortoise → order → Testudines ⓘ

Cryptodira → parentTaxon → Testudines ⓘ

Testudinidae → suborder → Testudines ⓘ

this entity surface form: Cryptodira