found: Walker mam. world:v. 1, p. 567, under Rodentia, Sciuridae (marmots; there are 11 species)
found: Corbet. A world list of mammalian species:p. 142 (Marmota; marmots)
found: ITIS, Mar. 21, 2020(Genus Marmota - Marmots. Tribe Marmotini - Holarctic ground squirrels, Subfamily Xerinae, Family Sciuridae)
found: NCBI taxonomy browser, Mar. 21, 2020(Marmota. Rank: genus. Tribe Marmotini, Subfamily Xerinae, Family Sciuridae)
found: Britannica online, Mar. 21, 2020(Marmot, (genus Marmota), any of 14 species of giant ground squirrels found primarily in North America and Eurasia)
found: Wikipedia, Mar. 21, 2020(Marmots are relatively large ground squirrels in the genus Marmota, with 15 species living in Asia, Europe and North America)
