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Keywords from Image Description:
Arsinoitherium zitteli Andrews . Skull of Arsinoitherium zitteli seen from behind br boc basioccipital cond condyles exo exoccipital frontal horn foramen magnum in internal nares nasal horn pr prominenece of squamosal pt pterygoids lambdoidal crest soc supraoccipital nat size Andrews descriptive catalogue of the Tertiary Vertebrata