1. African Centre for Coastal Palaeoscience, Nelson Mandela University, Gqeberha, South Africa
2. School of Geography, Geology and the Environment, University of Leicester, Leicester, UK
3. Dinosaur Trackers Research Group, University of Colorado Denver, Denver, CO, USA
4. Minerals and Energy Unit, Council for Geoscience, Bellville, South Africa
5. Evolutionary Studies Institute, University of the Witwatersrand, P Bag 3, WITS, Johannesburg, South Africa