1. Department of Environmental Science and Studies, DePaul University, Chicago, IL, USA
2. Department of Biological Sciences, DePaul University, Chicago, IL, USA
3. Sternberg Museum of Natural History, Fort Hays State University, Hays, KS, USA
4. Palmetto Paleontology Foundation, Summerville, SC, USA
5. Museum of Paleontology, University of California, Berkeley, CA, USA
6. Department of Environmental Studies, St. Mary’s College of Maryland, Maryland, USA
7. Department of Paleontology, Calvert Marine Museum, Solomons, MD, USA
8. College of Computer, Mathematical and Natural Sciences, University of Maryland, College Park, Maryland, USA