Palaeognathae

E267704
bird clade clade taxon

Palaeognathae is a major clade of mostly flightless birds that includes ostriches, emus, rheas, cassowaries, kiwis, and tinamous, characterized by their distinctive "old jaw" skull structure.

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All labels observed (3)

Label Occurrences
Palaeognathae canonical 10
Struthioniformes 3
palaeognaths 1

Statements (49)

Predicate Object
instanceOf bird clade ⓘ
clade ⓘ
taxon ⓘ
bodySizeRange small to very large birds ⓘ
characterizedBy distinctive "old jaw" skull structure ⓘ
palaeognathous palate ⓘ
rigid upper jaw ⓘ
class Aves ⓘ
commonName Palaeognathae self-linksurface differs ⓘ
surface form: palaeognaths
containsFlyingMembers tinamous ⓘ
distinguishedFrom Neognathae by skull morphology ⓘ
distribution Gondwanan origin ⓘ
evolutionarySignificance one of two major lineages of modern birds ⓘ
flightCapability mostly flightless ⓘ
fossilRecord Cretaceous to Recent ⓘ
includes Apterygiformes ⓘ
Casuariiformes ⓘ
Rheiformes ⓘ
Struthioniformes ⓘ
Tinamiformes ⓘ
includesCommonName cassowaries ⓘ
emus ⓘ
kiwis ⓘ
ostriches ⓘ
rheas ⓘ
tinamous ⓘ
includesExtinctGroup elephant birds ⓘ
moas ⓘ
infraclass Palaeognathae self-link ⓘ
jawType palaeognathous ⓘ
kingdom Animalia ⓘ
largestLivingMember common ostrich ⓘ
notableFeature reduced keel on sternum in most species ⓘ
strong legs adapted for running in many species ⓘ
palateStructure fused vomer and palatine bones ⓘ
large vomer contacting premaxillae ⓘ
phylum Chordata ⓘ
presentInContinent Africa ⓘ
Australia ⓘ
South America ⓘ
presentInRegion Madagascar ⓘ
surface form: Madagascar (extinct forms)

New Guinea ⓘ
New Zealand ⓘ
reproductiveTrait large eggs ⓘ
precocial chicks ⓘ
sisterGroup Neognathae ⓘ
subclass Neornithes ⓘ
taxonRank superorder ⓘ
typicalLocomotion terrestrial ⓘ

Referenced by (14)

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

Neognathae → sisterGroup → Palaeognathae ⓘ
Neognathae → excludes → Palaeognathae ⓘ
Casuariiformes → superorder → Palaeognathae ⓘ
Casuariiformes → relatedTo → Palaeognathae ⓘ
this entity surface form: Struthioniformes
Ornithurae → hasMember → Palaeognathae ⓘ
Rheiformes → clade → Palaeognathae ⓘ
Rheiformes → superorder → Palaeognathae ⓘ
Rheiformes → relatedTo → Palaeognathae ⓘ
this entity surface form: Struthioniformes
Apterygiformes → superorder → Palaeognathae ⓘ
Apterygiformes → relatedTo → Palaeognathae ⓘ
this entity surface form: Struthioniformes
Neornithes → hasMember → Palaeognathae ⓘ
Neornithes → hasSubclade → Palaeognathae ⓘ
Palaeognathae → infraclass → Palaeognathae self-link ⓘ
Palaeognathae → commonName → Palaeognathae self-linksurface differs ⓘ
this entity surface form: palaeognaths