Authors Year Title
House & Ziegler 1977 The Goniatite and Conodont sequences in the early Upper Devonian at Adorf, Germany.
Geologica et Palaeontologica, 11: 69-108, fig.1-4, pl.1-6; Marburg.
House, Kirchgasser & Price 1985 Goniatites from Frasnian (Upper Devonian) and adjacent strata of the Montagne Noire. [M.R.House, W.Kirchgasser, J.D.Price & Wade].
Herzynica, 1: 1-19, fig.1-14, pl.1-3;