Table 1 Members of the SQS Working Group on the Early–Middle Pleistocene Boundary in 2017 at the time of voting on the GSSP

• Luca Capraro, Dipartimento di Geoscienze, Università degli Studi di Padova, Padova, Italy

• Bradford M. Clement, Integrated Ocean Drilling Program and Department of Geology and Geophysics, Texas A&M University, College Station, USA

• Mauro Coltorti, Dipartimento di Scienze Fisiche, della Terra e dell’Ambiente, Università di Siena, Siena, Italy

• Craig S. Feibel, Department of Earth and Planetary Sciences, Rutgers University, Piscataway, New Jersey, USA

• Martin J. Head, Department of Earth Sciences, Brock University, St. Catharines, Ontario, Canada (Co-Convener)

• Lorraine E. Lisiecki, Department of Earth Science, University of California, Santa Barbara, USA

• Jiaqi Liu, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China

• Maria Marino, Dipartimento di Scienze della Terra e Geoambientali, Università degli Studi di Bari Aldo Moro, Bari, Italy

• Anastasia K. Markova, Institute of Geography, Russian Academy of Sciences, Moscow, Russia

• Brad Pillans, Research School of Earth Sciences, Australian National University, Canberra, ACT, Australia (Co-Convener)

• Yoshiki Saito, Geological Survey of Japan, AIST, Tsukuba, Ibaraki, Japan; and Estuary Research Center, Shimane University, Matsue, Shimane, Japan

• Brad S. Singer, Department of Geoscience, University of Wisconsin–Madison, USA

• Yusuke Suganuma, National Institute of Polar Research, Tachikawa, Tokyo, Japan and Department of Polar Science, School of Multidisciplinary Sciences, The Graduate University for Advanced Studies (SOKENDAI), Tachikawa, Tokyo, Japan

• Charles Turner, Department of Earth Sciences, The Open University, Milton Keynes, UK

• Chronis Tzedakis, Department of Geography, University College London, London, UK

• Thijs van Kolfschoten, Faculty of Archaeology, Leiden University, Leiden, The Netherlands