M. Gabriela Mángano

Department of Geological Sciences, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada

Author Contributions: Funding acquisition, Supervision, and Writing – review & editing.

Brian R. Pratt and M. Gabriela Mángano served as Associate Editors at the time of manuscript review and acceptance; peer review and editorial decisions regarding this manuscript were handled by Elizabeth Turner.

Trilobite specimens were collected by NMH and AI, and prepared and photographed by NMH, AI and BRP. Trilobite taxonomy, biostratigraphy, and paleoecology were interpreted by NMH and BRP. Sedimentology and ichnology were described and interpreted by AI, MGM and LAB.