	Authors	Year	Title
	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.
	House	1985	Class Cephalopoda. In: Murray,J.W. (Ed.): Atlas of invertebrate macrofossils.- 114-152, fig.6.7.1-6.7.25, pl.6.7.1-6.7.127; New York.