Avemetatarsalia

E673288

Avemetatarsalia is a major clade of archosaurs that includes dinosaurs (and thus birds) and their close relatives, representing the bird-line branch of archosaur evolution.

All labels observed (1)

Label Occurrences
Avemetatarsalia canonical 13

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf bird-line archosaur
clade
belongsToBranch bird-line archosaurs
clade Archosauria
closestLivingRelatives Crocodylia
linked to: Crocodilia
containsExtantMembers true
containsFlyingVertebrates true
containsFlyingVertebratesGroup Aves
Pterosauria
containsLargestTerrestrialAnimals true
contrastedWith Pseudosuchia
crocodile-line archosaurs
definingFeature elongated metatarsals in hindlimb
generally gracile limb morphology
mesotarsal ankle joint trend
dominantMesozoicTerrestrialVertebrates true
earliestFossilRecord Middle Triassic
etymologyLanguage Greek
etymologyMeaning bird metatarsals
evolutionarySignificance represents origin of bird-line archosaurs
extantRepresentatives birds
hasLivingRepresentatives Aves
higherClassification Archosauria
includesGroup avian dinosaurs
bird-line dinosaurs
non-avian dinosaurs
includesMajorSubclade Dinosauromorpha
linked to: Ornithodira

Ornithodira
includesTaxon Aves
Dinosauria
Dinosauromorpha
linked to: Ornithodira

Lagerpetidae
Ornithodira
Pterosauria
Silesauridae
kingdom Animalia
namedBy Paul Sereno
linked to: Paul C. Sereno
partOf Diapsida
Reptilia
phylogeneticDefinition all archosaurs closer to birds than to crocodilians
phylum Chordata
replacedEarlierFaunas many Triassic non-archosaur reptiles
sisterGroupOf Pseudosuchia
subdivisionOf Archosauria
taxonRank clade
temporalRange Middle Triassic to present
yearNamed 1991

How these facts were elicited

Referenced by (13)

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

Dinosauria partOf Avemetatarsalia
Tetanurae partOf Avemetatarsalia
Archosauria hasSubgroup Avemetatarsalia
Crocodyliformes relatedTo Avemetatarsalia
Ornithischia higherGroup Avemetatarsalia
Crocodylomorpha distinguishedFrom Avemetatarsalia
Crocodylomorpha sisterGroup Avemetatarsalia
Pseudosuchia sisterGroup Avemetatarsalia
Sauropodomorpha higherClassification Avemetatarsalia
Ornithodira parentTaxon Avemetatarsalia
Ornithodira subclassOf Avemetatarsalia
Stegosauria subclassOf Avemetatarsalia
Pterosauria clade Avemetatarsalia