Species: menzeli DENISON, 1985
Etymology: In honor of Mrs. Paul Menzel of Waverly, Iowa, who collected the holotype and generously donated it to the Univeristy of Iowa.
Holotype: SUI 33860
Locality: Pint’s Quarry, Raymond, Blackhawk County, Iowa.
Horizon: Cedar Valley Limestone, Rapid Member.
Age: Givetian Stage, Late Mid Devonian, Late Middle Devonian.
Material: An articulated specimen from the above.