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Tropical palms and arums at near-polar latitudes: fossil pollen evidence from the Tamar and Macquarie grabens, northern Tasmania

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Macphail, MK and Jordan, GJ 2015 , 'Tropical palms and arums at near-polar latitudes: fossil pollen evidence from the Tamar and Macquarie grabens, northern Tasmania' , Papers and Proceedings of the Royal Society of Tasmania, vol. 149 , pp. 23-28 , doi: 10.26749/rstpp.149.23.

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Abstract

We illustrate and discuss fossil pollen evidence for two mostly tropical extant plant families in the Tamar Valley, north of Launceston, northern Tasmania, and the Macquarie Harbour Graben on the west coast of Tasmania. These are palms (Arecaceae) producing disulcate pollen (Dicolpopollis spp.) and an incompletely zonisulcate pollen (Proxapertites cf. operculatus) identified as a fossil arum (Araceae). Both fossil pollen types add to the growing body of evidence that warm to hot conditions allowed tropical monocots belonging to these two families to grow at high palaeolatitudes (c. 65°S) during the Late Paleocene and/or Early Eocene in Tasmania and even closer to the pole (c. 70°S) during the Late Cretaceous in central and southern mainland Australia.

Item Type: Article
Authors/Creators:Macphail, MK and Jordan, GJ
Keywords: Fossil palms, arums, Arecaceae, Araceae, Dicolpopollis, Proxapertites, Late Cretaceous, Late Paleocene, Early Eocene, Tasmania, southern and central Australia
Journal or Publication Title: Papers and Proceedings of the Royal Society of Tasmania
ISSN: 0080-4703
DOI / ID Number: 10.26749/rstpp.149.23
Copyright Information:

Copyright The Royal Society of Tasmania

Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
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