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Remains of six conifer taxa are described from early Miocene sediments of the Manuherikia Group, New Zealand. Two of these are new, Retrophyllum vulcanense sp. nov. and Podocarpus alwyniae sp. nov. The others are Araucaria sp. sect. Eutacta , present as impressions of vegetative shoots and isolated ovuliferous cone scales, shoots of Dacrycarpus dacrydioides (A. Rich.) de Laubenf.; a single impression of a Phyllocladus sp. phylloclade; and an impression of an unidentified shoot. This is the first record of the genus Retrophyllum from New Zealand.
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Mike Pole (1992) studied this question.
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