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Showing results for tags 'paleoproterozoic'.
Oxytropidoceras posted a topic in Fossil NewsThe Shunga Event; did a Precambrian mass extinction give rise to an ancient supergiant oil field? Geological Digressions, Earth science resources, SCICOMM Ancient Earth, Precambrian geology, origin of life, atmosphere, oceans Yours, Paul H.
In a beach near Galaxidi, in Greece, i found some grey fossils on rocks with layers, just like the stromatolites. I believe that these fossils are members of Francevillian biota, witch includes the earliest multicellular organisms that was found in Gabon. These are the reasons that make me think that these fossils are from the Francevillian biota; 1.The fossils have got the same thickness with these that were found in Gabon; 6 mm. 2. In the past, one part of Eurasia (probably Greece) was next to Gabon in the Paleoproterozoic era, when the Francevillian biota appeared.
Oxytropidoceras posted a topic in Fossil NewsControversial fossils suggest life began to move 2.1 billion years ago. New Scientist, February 11, 2019 https://www.newscientist.com/article/2193557-controversial-fossils-suggest-life-began-to-move-2-1-billion-years-ago/ The paper is: Abderrazak El Albani, M. Gabriela Mangano, Luis A. Buatois, Stefan Bengtson, Armelle Riboulleau, Andrey Bekker, Kurt Konhauser, Timothy Lyons, Claire Rollion-Bard, Olabode Bankole, Stellina Gwenaelle Lekele Baghekema, Alain Meunier, Alain Trentesaux, Arnaud Mazurier, Jeremie Aubineau, Claude Laforest, Claude Fontain
published in 1996 and 1992, but interesting...even if more recent publications exist on this subject Microfossiliferous cherty stromatolites in the 2000 Ma Franceville Group, Gabon - 1992 - http://booksc.org/book/24844207 Microfossils in 2000 Ma old cherty stromatolites of the Franceville Group, Gabon - 1996 - http://booksc.org/book/17726645