. Central Asiatic Expeditions of the American Museum of Natural History, under the leadership of Roy Chapman Andrews : preliminary contributions in geology, palaeontology, and zoology. Central Asiatic Expeditions (1921-1930); Scientific expeditions; Natural history; Scientific expeditions; Natural history. ^ SD SE AM 6254 Fig. 2. Psittacosaurus mongcliensis, type skull (Amer. Mus. 6254). A. Left lateral aspect. One-half natural size. r\ u â 1/. ^'Sht lateral aspect, showing impressions of dermal armature beneath the osseotis iueal horns. Une-nalf natural size. C. Superior aspect. One-half natu
. Central Asiatic Expeditions of the American Museum of Natural History, under the leadership of Roy Chapman Andrews : preliminary contributions in geology, palaeontology, and zoology. Central Asiatic Expeditions (1921-1930); Scientific expeditions; Natural history; Scientific expeditions; Natural history. ^ SD SE AM 6254 Fig. 2. Psittacosaurus mongcliensis, type skull (Amer. Mus. 6254). A. Left lateral aspect. One-half natural size. r\ u â 1/. ^'Sht lateral aspect, showing impressions of dermal armature beneath the osseotis iueal horns. Une-nalf natural size. C. Superior aspect. One-half natural size. D. Posterior aspect. One-half natural size. , ,, ^\ Anterior aspect, showing dermal armature of the right side below quadratojugal horns. One- naif natural Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Central Asiatic Expeditions (1921-1930); Andrews, Roy Chapman, 1884-1960; Matthew, William Diller, 1871-1930. [New York : American Museum of Natural History
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