Pohlsepia mazonensis is named after its discoverer, James Pohl, and the type locality, Mazon Creek. Its habitat was the shallows seawards of a major river delta in what at that time was an inland ocean between the Midwest and the Appalachians.
Pohlsepia mazonensis is named for its discoverer, James Pohl, and the place where it was identified, Mazon Creek. Its habitat included shallow waters close to a major river delta in an inland water body situated between the Midwest and the Appalachians at that time.