page_title: Hsanda Gol Formation
section_title: Carnivorans
hierarchical_section_title: Hsanda Gol Formation / Paleobiota / Mammals / Carnivorans
caption_attribution_description: Skull of Nimravus gomphodus.
context_page_description: The Hsanda Gol Formation is a geological formation located in the Tsagan Nor Basin of central Mongolia that dates to the Rupelian age of the Oligocene epoch. It formed in continental desert-like conditions and is notable for its fossil mammals, first excavated by Roy Chapman Andrews and the American Museum of Natural History in the 1920s. Hsanda Gol is included in the Hsandagolian Asian Land Mammal Age, to which it gives its name.
caption: Nimravus cranium.
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