Trace fossils versus body fossils: Oldhamia recta revisited Tacker, R. Christopher ; Martin, Anthony J. ; Weaver, Patricia G. ; Lawver, Daniel R. Abstract Publication: Precambrian Research Pub Date: April 2010 DOI: 10.1016/j.precamres.2010.01.008 Bibcode: 2010PreR..178...43T