Ornithischia

E366857
dinosaur clade taxonomic group

Ornithischia is a major clade of primarily herbivorous, bird-hipped dinosaurs that includes groups such as stegosaurs, ankylosaurs, and ceratopsians.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (3)

Label Occurrences
Ornithischia canonical 14
Neornithischia 4
Thyreophora 4

Statements (49)

Predicate Object
instanceOf dinosaur clade ⓘ
taxonomic group ⓘ
characteristicTrait beak-like rhamphotheca in many taxa ⓘ
bipedal or quadrupedal posture ⓘ
cheek-like structures for food retention (inferred) ⓘ
leaf-shaped cheek teeth adapted for grinding plants ⓘ
ossified tendons along vertebrae in many forms ⓘ
predentary bone in lower jaw ⓘ
class Reptilia ⓘ
containsGroup Nodosauridae ⓘ
surface form: Ankylosauria

Cerapoda ⓘ
Ceratopsia ⓘ
Heterodontosauridae ⓘ
Ceratopsidae ⓘ
surface form: Marginocephalia

Ornithischia self-linksurface differs ⓘ
surface form: Neornithischia

Ornithopoda ⓘ
Pachycephalosaurus wyomingensis ⓘ
surface form: Pachycephalosauria

Stegosauria ⓘ
Ornithischia self-linksurface differs ⓘ
surface form: Thyreophora
diet primarily herbivorous ⓘ
distinguishedFrom Saurischia by pelvis morphology ⓘ
ecologicalRole primary herbivores in Mesozoic ecosystems ⓘ
etymology derived from Greek for "bird-hipped" ⓘ
extinctionEvent Cretaceous–Paleogene boundary ⓘ
surface form: Cretaceous–Paleogene extinction event
fossilDistribution global ⓘ
higherGroup Avemetatarsalia ⓘ
hipStructure bird-like pelvis ⓘ
includesFamousTaxon Ankylosaurus ⓘ
Iguanodon ⓘ
Pachycephalosaurus wyomingensis ⓘ
surface form: Pachycephalosaurus

Parasaurolophus ⓘ
Stegosaurus ⓘ
Triceratops ⓘ
kingdom Animalia ⓘ
locomotion bipedal in early forms ⓘ
facultatively quadrupedal in many ornithopods ⓘ
obligately quadrupedal in many thyreophorans ⓘ
namedBy Harry Govier Seeley ⓘ
phylum Chordata ⓘ
pubisOrientation backward-pointing pubis ⓘ
reproduction oviparous ⓘ
sisterGroup Saurischia ⓘ
subclass Ornithodira ⓘ
superorder Dinosauria ⓘ
taxonomicRank clade ⓘ
temporalRange Cretaceous ⓘ
Jurassic ⓘ
Late Triassic ⓘ
yearDescribed 1887 ⓘ

Referenced by (22)

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

Theropoda → relatedTo → Ornithischia ⓘ
Dinosauria → hasSubdivision → Ornithischia ⓘ
Saurischia → sisterClade → Ornithischia ⓘ
Triceratops → order → Ornithischia ⓘ
Othnielosaurus → order → Ornithischia ⓘ
Othnielosaurus → clade → Ornithischia ⓘ
this entity surface form: Neornithischia
Stegosaurus → order → Ornithischia ⓘ
Stegosaurus → suborder → Ornithischia ⓘ
this entity surface form: Thyreophora
Iguanodon → order → Ornithischia ⓘ
Dryosaurus → clade → Ornithischia ⓘ
this entity surface form: Neornithischia
Dryosaurus → order → Ornithischia ⓘ
Thescelosaurus neglectus → clade → Ornithischia ⓘ
Thescelosaurus neglectus → clade → Ornithischia ⓘ
this entity surface form: Neornithischia
Leptoceratops gracilis → order → Ornithischia ⓘ
Edmontosaurus annectens → clade → Ornithischia ⓘ
Denversaurus → order → Ornithischia ⓘ
Denversaurus → suborder → Ornithischia ⓘ
this entity surface form: Thyreophora
Nodosauridae → parentTaxon → Ornithischia ⓘ
this entity surface form: Thyreophora
Ornithischia → containsGroup → Ornithischia self-linksurface differs ⓘ
this entity surface form: Thyreophora
Ornithischia → containsGroup → Ornithischia self-linksurface differs ⓘ
this entity surface form: Neornithischia
Pachycephalosaurus wyomingensis → order → Ornithischia ⓘ
Saltasauridae → parentTaxon → Ornithischia ⓘ