	Authors	Year	Title
	Miller & Werner	1942	A goniatite from the Mississippian Fern Glen formation of Illinois. Journal of Paleontology, 16: 479-481, fig.1-2; Tulsa, Oklahoma.
	Miller & Garner	1955	Lower Mississippian cephalopods of Michigan. Part III. Ammonoids and summary. Contributions, Museum of Paleontology. Univ. Michigan, 12: 113-173, fig.1-16, pl.1-7; Michigan.