1. Centre for Past Climate Change and Department of Geography and Environmental Science; University of Reading; Whiteknights Reading RG6 6AB UK
2. Department of Geography; Northumbria University Newcastle; Newcastle-upon-Tyne UK
3. Department of Archaeology; University of Exeter; Exeter UK
4. Herbario del Oriente Boliviano, Museo de Historia Natural Noel Kempff Mercado; Universidad Autónoma Gabriel René Moreno; Santa Cruz Bolivia