Authors Year Title
House 1956 Devonian Goniatites from North Cornwall.
Geological Magazine, 9342: 257-262, fig.1; London.
House 1963 Devonian ammonoid successions and facies in Devon and Cornwall.
Quarterly Journal of the Geological Society of London, 119: 1-27, fig.1-8, pl.1-4; London.
Petter 1959 Goniatites dévoniennes du Sahara.
Publ. Serv. Carte géol. Algérie, n.s., Paléont., 2: 1-313, fig.1-58, pl.1-26; Alger.
Yang 1984 Devonian System and its ammonoid fauna from Baoshan district, West Yunnan. [In Chinese, with short English summary].
Journal of the Chengdu College of Geology, 1984: 22-36, 9 figs., 2 pls., Chengdu.