Mammal Species of the World: A Taxonomic and Geographic Reference, 3rd ed., vols. 1 & 2
Johns Hopkins University Press
Baltimore, Maryland, USA
Comments: Given full familial rank here and by Shoshani and McKenna (1998), but not by McKenna and Bell (1997). Ptilocercus exhibits many plesiomorphic and autapomorphic external, craniodental, and postcranial traits unique among treeshrews (including a terminally distichous tail); see Lyon (1913:4), Le Gros Clark (1926) and Sargis (2001, 2002a, b)
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