Pachycephalosaurs

GPTKB entity

Statements (46)
Predicate Object
gptkbp:instanceOf Dinosaur clade
gptkbp:alsoKnownAs gptkb:Pachycephalosauria
gptkbp:bodyLength small to medium
1 to 5 meters
gptkbp:clade gptkb:Pachycephalosauria
gptkbp:diet herbivorous
gptkbp:distribution gptkb:Asia
gptkb:North_America
possibly Europe
gptkbp:eggColor unknown
gptkbp:extinct about 66 million years ago
gptkbp:famousGenus gptkb:Stegoceras
gptkb:Pachycephalosaurus
gptkb:Prenocephale
gptkb:Homalocephale
gptkbp:firstAppearance about 85 million years ago
gptkbp:firstDescribed 1945
gptkbp:fossil fragmentary
gptkbp:fossilDiscovery North America, Mongolia, China
https://www.w3.org/2000/01/rdf-schema#label Pachycephalosaurs
gptkbp:juvenileSkull flatter than adults
gptkbp:locomotion bipedal
gptkbp:namedFor gptkb:Franz_Nopcsa
gptkbp:notableFeature thick domed skulls
gptkbp:notableSite gptkb:Mongolia
gptkb:Hell_Creek_Formation
gptkbp:notableSpecies gptkb:Pachycephalosaurus_wyomingensis
gptkbp:numberOfSpecies about 15
gptkbp:order gptkb:Ornithischia
gptkbp:period gptkb:Late_Cretaceous
gptkbp:phylogeneticPosition gptkb:Marginocephalia
gptkbp:possibleBehavior head-butting
flank-butting
gptkbp:relatedTo Ceratopsians
gptkbp:sexualDimorphism debated
gptkbp:skullLength dome-shaped
flat-headed (in some genera)
gptkbp:skullOrnamentation nodes and spikes
gptkbp:skullThickness up to 25 cm
gptkbp:subfamily gptkb:Marginocephalia
gptkbp:tailLength stiffened by ossified tendons
gptkbp:taxonRank subfamily
gptkbp:teeth small, leaf-shaped
gptkbp:bfsParent gptkb:Stegoceras
gptkb:Jurassic_Park_franchise
gptkbp:bfsLayer 6