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Noun: order Ornithischia
  1. Extinct terrestrial reptiles having bird-like pelvises: armoured dinosaurs (thyreophorans); boneheaded and horned dinosaurs (marginocephalians); duck-billed dinosaurs (euronithopods)
    - Ornithischia

Type of: animal order

Part of: Archosauria, subclass Archosauria

Nearest

Order of Our Lady of Mount Carmel
order of payment
order of Saint Benedict
order of the day
Order of the Purple Heart
order Oleales
order Ophioglossales
order Opiliones
order Opuntiales
order Orchidales
order Ornithischia
order Orthoptera
order Ostariophysi
Order Osteoglossiformes
order Ostracodermi
order Palmales
order Pandanales
order Papaverales
order paper
order Parietales
order Passeriformes