Papers and Proceedings of the Royal Society of Tasmania, Volume 148, 2014 43 COASTAL EROSION REVEALS A POTENTIALLY UNIQUE OLIGOCENE AND POSSIBLE PERIGLACIAL SEQUENCE AT PRESENT-DAY SEA LEVEL IN PORT DAVEY, REMOTE SOUTH-WEST TASMANIA by Mike Macphail, Chris Sharples, David Bowman, Sam Wood & Simon Haberle (with two text-figures, five plates and two tables) Macphail, M., Sharples, C., Bowman, D., Wood, S. & Haberle, S. 2014 (19:xii): Coastal erosion reveals a potentially unique Oligocene and possible periglacial sequence at present-day sea level in Port Davey, remote South-West Tasmania. Papers and Proceedings of the Royal Society of Tasmania 148: 43–59. https://doi.org/10.26749/rstpp.148.43 ISSN 0080-4703 Department of Archaeology & Natural History, College of Asia and the Pacific, Australian National University, Canberra, ACT 0200, Australia (MM*, SH); School of Geography & Environmental Studies, Faculty of Science, Engineering & Technology, University of Tasmania, Hobart 7001, Tasmania, Australia (CS); School of Biological Sciences, Faculty of Science, Engineering & Technology, University of Tasmania, Hobart 7001, Tasmania, Australia (DB, SW). *Author for correspondence. Email:
[email protected] Cut-back of a sea-cliff at Hannant Inlet in remote South-West Tasmania has exposed Oligocene clays buried under Late Pleistocene “collu- vium” from which abundant wood fragments protrude. The two units are separated by a transitional interval defined by mixed Oligocene and Pleistocene microfloras. Microfloras preserved in situ in the clay provide a link between floras in Tasmania and other Southern Hemisphere landmasses following onset of major glaciation in East Antarctica during the Eocene-Oligocene transition (c. 34 Ma).