ACKNOWLEDGMENTS
We gratefully acknowledge input from reviewers Dr. Kendall Hauer and Dr. David Meyer, as well as the skillful preparation of maps by William Besse.
Additional information
Notes on contributors
Don Bissett
Don Bissett is a longtime member of several fossil organizations in the Midwest, has collected in many localities in the United States, has donated hundreds of specimens for study, and has written dozens of paleontology articles.
Jack Kallmeyer
Jack Kallmeyer is president of the Cincinnati-based Dry Dredgers, author/coauthor of numerous peer-reviewed publications, and winner of the (international) Paleontological Society’s Harrell L. Strimple Award.
Nikki Zehler
Nikki Zehler is a Cincinnati-based avocational paleontologist. As a member of the Dry Dredgers and the Friends of the University of Michigan Museum of Paleontology, she actively visits collecting sites across the Midwest and was a coauthor of a recent paper introducing a new species of Silurian cyclocystoid.