An Australian origin for the candle nut (Aleurites, Crotonoideae, Euphorbiaceae) and the fossil record of the Euphorbiaceae and related families in Australia and New Zealand

Rozefelds, Andrew C., Dettmann, Mary E., Clifford, H. Trevor and Ekins, Merrick (2017) An Australian origin for the candle nut (Aleurites, Crotonoideae, Euphorbiaceae) and the fossil record of the Euphorbiaceae and related families in Australia and New Zealand. Review of Palaeobotany and Palynology, 241 39-48. doi:10.1016/j.revpalbo.2017.01.006


Author Rozefelds, Andrew C.
Dettmann, Mary E.
Clifford, H. Trevor
Ekins, Merrick
Title An Australian origin for the candle nut (Aleurites, Crotonoideae, Euphorbiaceae) and the fossil record of the Euphorbiaceae and related families in Australia and New Zealand
Formatted title
An Australian origin for the candle nut (Aleurites, Crotonoideae, Euphorbiaceae) and the fossil record of the Euphorbiaceae and related families in Australia and New Zealand
Journal name Review of Palaeobotany and Palynology   Check publisher's open access policy
ISSN 0034-6667
Publication date 2017-06-01
Sub-type Article (original research)
DOI 10.1016/j.revpalbo.2017.01.006
Open Access Status Not yet assessed
Volume 241
Start page 39
End page 48
Total pages 10
Place of publication Amsterdam, Netherlands
Publisher Elsevier BV
Collection year 2018
Language eng
Formatted abstract
A fossil seed from south east Queensland referable to the extant genus Aleurites (candlenut) is described as a new species, A. australis, and is one of the few macrofossil records of Euphorbiaceae from Australia. The new fossil data and phylogenetic studies of the biogeographical relationships of Aleurites based upon analysis of rbcL and trnL-F sequence data support a Gondwanic origin for the clade. The macrofossil record of Euphorbiaceae in Australia is restricted to seeds of Aleurites; and fruits of Fontainocarpa which are thought to have affinities with Fontainea, and both extant genera are referable to the Crotonoideae. One group of crotonoids has inaperturate spheroidal pollen, that is comparable to the dispersed pollen genus, Crotonipollis, which has an Oligocene to Recent range in Australia. The fossil pollen record in Australia and New Zealand of other Euphorbiaceae and related families includes species of Malvacipollis that have affinities to the Picrodendraceae; Nyssapollenites endobalteus (McIntyre) Kemp and Harris has affinities with the subfamily Acalyphoideae (Euphorbiaceae); and putative records of Homalanthus suggest affinities with the subfamily Euphorbioideae (Euphorbiaceae). Fossil fruits of Glochidion provide possible evidence of the Phyllanthaceae. The stratigraphic range of these taxa in respect to the Weddellian Biostratigraphic Province, which includes southern South America, western Antarctica, New Zealand, and eastern Australia is also briefly reviewed.
Keyword Aleurites
Australia
Cenozoic
Euphorbiaceae
Fossil fruits
Pollen
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Earth Sciences Publications
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