Knoll, AndrewBarghoorn, Elso S.Awramik, Stanley M.2010-02-221978Knoll, Andrew H., Elso S. Barghoorn, and Stanley M. Awramik. 1978. New microorganisms from the Aphebian Gunflint Iron Formation, Ontario. Journal of Paleontology 52 (5):976-992.0022-3360 (Print)http://nrs.harvard.edu/urn-3:HUL.InstRepos:3686135Two new algal taxa are described from the approximately 2,000 m.y. old Gunflint Iron Formation, Ontario. <i>Leptoteichos golubicii</i>, n. gen. et sp., were relatively large (5-31 mu m) spherical plankters living in the water column above the central portions of the Gunflint basin. <i>Post-mortem</i> degradation processes have acted on this taxon to produce a "spot cell" organization similar to that exhibited by younger putatively eukaryotic cells; however, <i>L. golubicii</i> is here placed among the Algae <i>incertae sedis</i> and considered to be a probable cyanophyte. <i>Megalytrum diacenum</i>, n. gen. et sp., is the preserved sheath of a colonial chroococcalean blue-green alga. It constitutes an allochthonous element of the algal chert facies microbiota of the Gunflint Iron Formation.en-USJournal Article