Plesiadapoidea was an extinct superfamily of primates that existed during the Paleocene and Eocene in North America, Europe, and Asia.Thewissen J.G.M., Williams, E.M., and Hussain, S.T. (2001). "Eocene mammal faunas from northern Indo-Pakistan". Journal of Vertebrate Paleontology 21 (2): 347–366. DOI:[0347:EMFFNI]2.0.CO;2 10.1671/0272-4634(2001)021[0347:EMFFNI]2.0.CO;2.Fox, Richard C.; The dentition and relationships of Carpodaptes cygneus (Russell) (Carpolestidae, Plesiadapiformes, Mammalia), from the late Paleocene of Alberta, Canada; Journal of Paleontology; September 1, 2002 - www.encyclopedia.com
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