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Early Mid-Oligocene (Whaingaroan-Duntroonian) diastems marked by surfaces of biogenic excavations on the east coast of the South Island, New Zealand.
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Paleoecology of Otekaike Limestone in Hakataramea and lower Waitaki Valleys, South Island, New Zealand.
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Sedimentary history of the lowermost Otaian horizon in north Canterbury, New Zealand.
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The Palynology of Lake Hayes, Central Otago, New Zealand.