1. Department of Geography and Environmental Sciences Northumbria University Newcastle upon Tyne UK
2. Department of Physics, Earth Science, and Space Systems Engineering Morehead State University Morehead KY USA
3. Laboratorio de Geología de Llanuras. Facultad de Ciencia y Tecnología Universidad Autónoma de Entre Ríos, Sede Diamante CONICET (National Scientific and Technical Research Council) Buenos Aires Argentina
4. Department of Geology & Geophysics, and Museum of Natural Science Center for Excellence in Palynology Louisiana State University Baton Rouge LA USA