The Pliocene : Early Pleistocene geology of the Kaniere district, Hokitika.

Almond, Carol Susan.

A late Cainozoic, regressive sedimentary sequence near Hokitika consisting of marine, transitional, non-marine and glacial sediments is described. Results of palaeomagnetic work on a section through the fossiliferous siltstones of the Blue Bottom group are presented and from this it is concluded that the Pliocene-Pleistocene boundary occurs in the upper part of the Blue Bottom Group. The glacial sediments of the Ross Glaciation (Jones FoLmation, Old Man Group) are therefore of early Pleistocene age.
The fauna of the Blue Bottom group has been examined in an attempt to clarify the meaning of the term Kanieri as used by Hutton (1873). The conclusion is reached that this is a general term which was applied to specimens collected from Blue Bottom sediments in the GreymouthHokitika area and that it was not used to denote a single specific locality.
The species described or listed by Hutton (1873) from Kanieri are reviewed and the species Chlamys (MimachZamys) scandula (Hutton) (=Pecten scandula) is revived and a neotype proposed. Two new species, Sectipecten problematicus and Aeneator sylvanum, and two new subspecies, Pelicaria marima arahura and Phalium (Mauicassis) fibratum occidentaZis, are described. A new fossil of Cavolinia tridentata is also described: Cavolinia tridentata forma zelandica.

363 p. : ill. (some col.), chart, map ; 30 cm.

1980Almond

Abstract Only

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