1. Department of Biological Sciences, California State Polytechnic University, Humboldt, 1 Harpst Street, Arcata, CA 95521 (United States) and Division of Paleontology, American Museum of Natural History, Central Park West at 79th Street, New York, NY 1
2. Département Origines et évolution, CR2P UMR 7207 (MNHN, CNRS, Sorbonne Université), Muséum national d'Histoire naturelle, 57 rue Cuvier, 75231 Paris cedex 05 (France) and Division of Paleontology, American Museum of Natural History, Central Park West
3. Florida Museum of Natural History, Dickinson Hall, 1659 Museum Road, University of Florida, Gainesville, FL 32611 (United States)
4. Division of Paleontology, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024 (United States)