1. Amer angle Anomphalous base body whorl Bradshaw bulloides characterised climate colks columella concave band convex d'Orbigny depth dissection distribution drillholes epicentres Estimate Area fault foci Foraminifera Formation fossil Gastropods genus Geol Geological Geopbys Globigerina Globigerinoides Globorotalia Greymouth Greymouth Coalfield