Definition of Ornithischia

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


Lexicographical Neighbors of Ornithischia

Orlon
Orly
Orly Group
Ormandy
Ormazd
Ormond's disease
Ormosia
Ormosia coarctata
Ormsby filter
Ormuzd
Orn
Orneæ
Ornish prevention diets
Ornish reversal diet
Ornithischia (current term)
Ornithodoros
Ornithodoros coriaceus
Ornithodoros erraticus
Ornithodoros hermsi
Ornithodoros lahorensis
Ornithodoros moubata complex
Ornithodoros pappilipes
Ornithodoros parkeri
Ornithodoros rudis
Ornithodoros savigni
Ornithodoros talaje
Ornithodoros tholozani
Ornithodoros turicata
Ornithodoros venezuelensis

Literary usage of Ornithischia

Below you will find example usage of this term as found in modern and/or classical literature:

1. Organic Evolution by Richard Swann Lull (1917)
"... dinosaur (Ornithischia), Campto- saurus; and (B) carnivorous dinosaur (Saurischia), Allosaurus. One- twelfth natural size. a. acetabulum or hip socket; ..."

2. Vertebrate Zoölogy by Horatio Hackett Newman (1920)
"The Ornithischia.—While both of the groups of dinosaurs just described are alike in having the typical reptilian pelvis and are therefore grouped together ..."

3. The Encyclopedia Americana: A Library of Universal Knowledge (1918)
"... and 'tax'wv, hip joint) and Ornithischia (Gr. ty-wc, bird), because of the basic structure of their pelvis, which in the one case resembles that of the ..."

4. Proceedings of the Royal Society of London by Royal Society (Great Britain) (1894)
"... type approximates to the Saurischia and Mammalia, just as the Ornithischia approximate to birds in the same parts of the skeleton. ..."

5. The Origin and Evolution of Life: On the Theory of Action, Reaction and by Henry Fairfield Osborn (1917)
"... THE ORIGIN AND EVOLUTION OF LIFE (Ornithischia). The small Triassic ancestors of this great group of herbivorous, ornithischian dinosaurs also gave rise ..."

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