Edwards, A.R. 1991 The Oamaru diatomite. Lower Hutt: DSIR Geology & Geophysics. New Zealand Geological Survey paleontological bulletin 64 260 p.
Abstract: World famous marine diatomaceous deposits of late Eocene age are extensive near Oamaru, northeast Otago. Their abundant and diverse microfossil content has been extensively studied, mainly by diatomists and microscopists, during the last 100 years. Little effort has until now been put into determining their age, stratigraphy or depositional environment. This bulletin addresses this situation. It is in two parts dealing with the geologic and paleontologic aspects of the deposits. both parts emphasise data of interest to diatomists and other paleontologists but also include subjects of wider geological interest. (auth)