1. Department of Ecology, Evolution, and Behavior, University of Minnesota , St. Paul, MN 55108 , United States
2. Bell Museum of Natural History, University of Minnesota , St. Paul, MN 55108 , United States
3. Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution , Washington, DC 20013 , United States
4. Gantz Family Collections Center, Field Museum of Natural History , Chicago, IL 60605 , United States
5. Department of Fisheries, Wildlife, and Conservation Biology, University of Minnesota , St. Paul, MN 55108 , United States
6. Department of Paleobiology, National Museum of Natural History, Smithsonian Institution , Washington, DC 20013 , United States