40577
An extinct species of camel in the separate genus " Camelops " , known as " C. hesternus " , lived in western North America until the end of the Pleistocene , roughly 11,000 years ago .
 Camelops, North America
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
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Answer:
 Camelops, North America