Ancient Ephemeroptera-Collembola Symbiosis Fossilized in Amber Predicts Contemporary Phoretic Associations Penney, David ; McNeil, Andrew ; Green, David I. ; Bradley, Robert S. ; Jepson, James E. ; Withers, Philip J. ; Preziosi, Richard F. Abstract Publication: PLoS ONE Pub Date: October 2012 DOI: 10.1371/journal.pone.0047651 Bibcode: 2012PLoSO...747651P