1. Department of Biology, Geology & Environmental Science, University of Tennessee at Chattanooga, Chattanooga, TN, USA
2. Department of Geosciences, East Tennessee State University, Johnson City, TN, USA
3. División Paleontología Vertebrados, Museo de La Plata, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata (UNLP), Argentina
4. Consejo Nacional de Investigaciones Científicas y Técnicas – CONICET, Ciudad Autónoma de Buenos Aires, Argentina
5. Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada
6. Section of Paleobiology, Department of Natural History, Royal Ontario Museum, Toronto, Ontario, Canada