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Synaptomys (Mictomys) borealis Richardson 1828 (northern bog lemming)

Osteichthyes - Rodentia - Cricetidae

PaleoDB taxon number: 96485

Alternative combinations: Arvicola borealis, Mictomys borealis, Synaptomys borealis

Synonyms: Mictomys innuitus True 1894 (no. 48613), Synaptomys andersoni Allen 1903 (no. 51943), Synaptomys bullatus Preble 1902 (no. 51947), Synaptomys chapmani Allen 1903 (no. 51949), Synaptomys dalli Merriam 1896 (no. 51951), Synaptomys sphagnicola Preble 1899 (no. 51958), Synaptomys truei Merriam 1896 (no. 51960), Synaptomys wrangeli Merriam 1896 (no. 51962)

Belongs to Synaptomys (Mictomys) according to K. L. Seymour 2004

Sister taxa: Mictomys kansasensis, Mictomys meltoni, Mictomys vetus

Ecology: scansorial insectivore

Average measurements (in mm): M1 2.70 x 1.20, M2 2.00 x 1.10, M3 2.10 x 1.00, m1 2.90 x 1.20, femur length 12.4, humerus length 11.4, radius length 11.4, scapula length 10.2, skull 22.9 x 12.4, tibia length 16.3

Estimated body mass: 23.0 g based on femur length, humerus length, m1 length, and tibia length