THE CASE FOR THE GLOBAL STRATOTYPE SECTION AND POINT(GSSP) FOR THE BASE OF THE NORIAN STAGE

The Norian Stage is the longest stage in the Phanerozoic, and some members of the boundary working group have been evaluating suitable Carnian-Norian boundary sections for roughly two decades. This has identified two possible candidate boundary sections, at Black Bear Ridge (British Columbia, Canada) and Pizzo Mondello (Sicily, Italy). After a formal voting procedure within the working group, ending on the 26th July, 2021, the Pizzo Mondello section was selected as the global stratotype section and point for the base of the Norian. We evaluated the global correlation potential of the two proposed primary markers, the conodont Metapolygnathus parvus and the ‘flat-clam’ Halobia austriaca. Secondary markers were also evaluated around these boundary datums for correlation potential, Wroking Group Report THE CASE FOR THE GLOBAL STRATOTYPE SECTION AND POINT(GSSP) FOR THE BASE OF THE NORIAN STAGE Mark W. Hounslow1, and the Carnian-Norian boundary working group comprising: Gerhard H. Bachmann2, Marco Balini3, Michael J. Benton4, Elizabeth S. Carter5, Alexey G. Konstantinov6, Martyn L. Golding7, Leopold Krystyn8, Wolfram M. Kürschner9, Spencer G. Lucas10, Christopher A. McRoberts11, Giovanni Muttoni3, Alda Nicora3, Tetsuji Onoue12 Michael J. Orchard7, Péter Ozsvárt13, Niall W. Paterson14, Sylvain Richoz15, Manuel Rigo16, Yadong Sun17, Lydia S. Tackett18, Ugar Kağan Tekin19, Yongdong Wang20, Yang Zhang21, John-Paul Zonneveld22. 1LEC, Lancaster University, and Earth, Ocean and Ecological Sciences, University of Liverpool, UK; 2Institut für Geowissenschaften, Martin-Luther-Universität Halle-Wittenberg, D-06120 Halle (Saale), Germany; 3 all’Università degli Studi di Milano,Il valore della ricerca interdisciplinare, Italy; 4University of Bristol, Life Sciences Building, Tyndall Avenue, Bristol, BS8 1TQ, UK; 569745 Old Wagon Road, Sisters, OR 97759, USA; 6Trofimuk Inst. of Petro. Geology and Geophysics, Russian Academy of Sciences, Novosibirsk, 630090 Russia; 7Geological Survey of Canada, 1500-605 Robson Street, Vancouver, British Columbia V6B 5J3, Canada; 8Inst. Paleontology, Geozentrum UZA2, 2B309, Althanstrasse 14, A-1090 Vienna, Austria; 9Department of Geosciences, University of Oslo, P.O. Box 1047, Blindern, N-0316 Oslo, Norway; 10New Mexico Museum of Natural History & Science, Albuquerque, New Mexico 87104, USA; 11Geology Department, SUNY Cortland, P.O. Box 2000, Cortland, NY, USA; 12Dept. of Earth & Planetary Sciences, Kyushu Univ.,744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; 13MTA-MTM-ELTE, Research Group for Paleontology, P.O. Box 137 Published online: December 22, 2021 Hounslow, M.W., Bachmann, G.H., Balini, M., Benton, M.J. Carter, E.S., Konstantinov, A.G., Golding, M.L., Krystyn, L., Kürschner, W., Lucas, S.G., McRoberts, C.A., Muttoni, G., Nicora, A., Onoue, T., Orchard, M.J., Ozsvárt, P., Paterson, N.W., Richoz, S., Manuel Rigo, M., Sun, Y., Tackett, L.S., Kağan Tekin, U., Wang, Y., Zhang, Y., & Zonneveld. J.-P. 2021.The case for the Global Stratotype Section and Point (GSSP) for the base of the Norian stage. Albertiana, vol. 46, 25–57.

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