	Authors	Year	Title
	Boardman, Work & Mapes	1994	Biostratigraphy of Middle and Late Pennsylvanian (Desmoinesian-Virgilian) ammonoids. [Boardman,D.R., D.M.Work, Mapes,R.H. & Barrick,J.E.]. Kansas Geological Survey Bulletin 232, 121 p., 26 figs., 1 tabl., 5 pls., Lawrence, KS.
	Ehiro, Komori & Tsuchiya	2010	Carboniferous ammonoids and corals from seamount limestone in an accretionary complex within the North Kitakami Belt, Northeast Japan. Jour.Geol.Soc. Japan, 116 (4), 219-228.