Diapsida

E179391

Diapsida is a major clade of reptiles characterized by two temporal skull openings, encompassing groups such as lizards, snakes, crocodilians, and birds.

All labels observed (2)

Label Occurrences
Diapsida canonical 7
Archosauromorpha 1

How this entity was disambiguated

Statements (49)

Predicate Object
instanceOf clade
reptile clade
taxon
bodyTemperatureRegulation includes endothermic lineages
mostly ectothermic
class Reptilia
contrastedWith Anapsida
Synapsida
ecologicalDiversity aerial
aquatic
terrestrial
endothermicLineages birds
firstAppearance Pennsylvanian
about 300 million years ago
late Carboniferous
fossilRecord extensive
hasCharacteristic diapsid skull condition
pair of temporal fenestrae behind the eyes
two temporal skull openings
hasLivingRepresentatives true
hasModernRepresentatives most living reptiles and birds
hasSubclade Araeoscelidia
Neodiapsida
includesOrganismGroup birds
crocodilians
lizards
snakes
includesTaxon Archosauria
Aves
Crocodilia
surface form: Crocodylia

Ichthyosauria
Lepidosauria
Plesiosauria
Archosauria
surface form: Pterosauria

Rhynchocephalia
Squamata
Testudines
non-avian dinosaurs
infraphylum Gnathostomata
isSubsetOf Sauropsida
kingdom Animalia
namedBy Henry Fairfield Osborn
phylum Chordata
subphylum Vertebrata
superclass Vertebrata
surface form: Tetrapoda
taxonRank clade
temporalFenestraCount two
typeSpecies Petrolacosaurus kansensis
yearNamed 1903

How these facts were elicited

Referenced by (8)

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

Aves hasSubgroup Diapsida
Cryptodira subclass Diapsida
Squamata subclass Diapsida
Crocodilia subclass Diapsida
Archosauria subclass Diapsida
Archosauria unrankedClade Diapsida
this entity surface form: Archosauromorpha
Pleurodira subclass Diapsida
Somphospondyli parentTaxon Diapsida