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Two new Banksia species from Pleistocene sediments in Western Tasmania

journal contribution
posted on 2023-05-17, 22:14 authored by Gregory JordanGregory Jordan, Robert HillRobert Hill
Subtribe Banksiinae of the Proteaceae was diverse in Tasmania in the early and middle Tertiary, but is now restricted to two species, Banksia marginata and B. serrata. Rapid and extreme environmental changes during the Pleistocene are likely causes of the extinction of some Banksia species in Tasmania. Such extinctions may have been common in many taxonomic groups. The leaves and infructescences of Banksia kingii Jordan & Hill, sp. nov. are described from late Pleistocene sediments. This is the most recent macrofossil record of a now extinct species in Tasmania. Banksia kingii is related to the extant B. saxicola. Banksia strahanensis Jordan & Hill, sp. nov. (known only from a leaf and leaf fragments and related to B. spinulosa) is described from Early to Middle Pleistocene sediments in Tasmania. This represents the third Pleistocene macrofossil record of a plant species which is now extinct in Tasmania.

History

Publication title

Australian Systematic Botany

Volume

4

Pagination

499-511

ISSN

1030-1887

Department/School

School of Natural Sciences

Publisher

C S I R O Publishing

Place of publication

150 Oxford St, Po Box 1139, Collingwood, Australia, Victoria, 3066

Rights statement

Copyright 1991 CSIRO

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the biological sciences

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