niazi Posted July 16, 2016 Share Posted July 16, 2016 (edited) What formation is the etobicoke shale from. I visited the creek today and brought a plate full of crinoids, I was wondering what period it is from? Etobicoke, ontario, canada Edited July 16, 2016 by niazi Link to comment Share on other sites More sharing options...
Kane Posted July 16, 2016 Share Posted July 16, 2016 (edited) This is a helpful reference: http://www.geologyontario.mndmf.gov.on.ca/mndmfiles/pub/data/imaging/M2544/M2544.pdf And I'll go out on a limb and say that it is likely Ordovician given the exposures in that area. Edited July 16, 2016 by Kane ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
FossilDAWG Posted July 18, 2016 Share Posted July 18, 2016 I'm not at all sure what you mean by "the creek" but the bedrock in the Toronto area is the Georgian Bay Formation (Upper Ordovician). Don Link to comment Share on other sites More sharing options...
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