Template:Osborn, 1923

• Osborn, H.F. 1923. Two Lower Cretaceous dinosaurs of Mongolia. American Museum Novitates 95: 1–10. hdl: 2246/3267  
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Nomenclatural acts

• Date of publication: 1923

New names

(List may be incomplete)

• Psittacosaurus (n. gen) [p. 2]
• Psittacosaurus mongoliensis (n. sp) [p. 2]
• Psittacosauridae (n. fam) [p. 6]
• Protiguanodon (n. gen) [p. 6]
• Protiguanodon mongoliense (n. sp) [p. 6]