Venanzio Munyaka, Baylor University, Department of Geosciences, Waco, TX, United States, Aly Baumgartner, University of Michigan Herberium, Department of Ecology and Evolutionary Biology, Ann Arbor, United States, Caroline Strömberg, University of Washington, Biology & Burke Museum of Natural History & Culture, Seattle, United States, Kevin T Uno, Harvard University, Human and Evolutionary Biology, Cambridge, MA, United States, Rahab Kinyanjui, National Museums of Kenya, Earth Sciences Department, Nairobu, Kenya, Michaela Eamma, Datapoint, Fort Worth, United States, Tammo Reichgelt, University of Connecticut, Department of Earth Sciences, Storrs, United States and Daniel J Peppe, Baylor University, Department of Geosciences, Waco, United States