Journal article

Cheirolepidiacean foliage and pollen from Cretaceous high-latitudes of southeastern Australia

Anne-Marie P Tosolini, Stephen McLoughlin, Barbara E Wagstaff, David J Cantrill, Stephen J Gallagher



Cheirolepidiaceae leaves and pollen are recorded from Valanginian-Albian strata of southeastern Australia that were deposited at high-latitudes under cool, moist climates in contrast to the semi-arid or coastal habitats preferred by many northern Gondwanan and Laurasian representatives of this group. Leaves of this family are characterized by thick cuticles and cyclocytic stomata with randomly oriented apertures, arranged in scattered or longitudinal rows or bands. Stomata are deeply sunken and surrounded by four to six subsidiary cells that bear one or two ranks of prominent overarching papillae, which may constrict the mouth of the pit. Three new taxa (Otwayia denticulata Tosolini, Cheirol..

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Funding Acknowledgements

The authors thank the sponsors of this project: Minerals and Petroleum Victoria, OMV Australia Pty Ltd. (formerly Cultus Petroleum), SANTOS Limited and Oil Company of Australia. The project formed part of a PhD undertaken by A-M.P.T. that was funded by the Australian Postgraduate Award (Industry), and fit into the larger Australian Research Council Large Grant for the investigation of Australian Mesozoic floras, which was awarded to SM. Jocelyn Carpenter gave valuable help with scanning electron microscopy. ARC Linkage grant LP0989203 to DJC, SJG and BEW, funded this research with industry partners Lakes Oil N.L., Nexus Energy and Geotrack International. SM acknowledges the funding support from a Swedish Research Council (VR) grant and an Australian Research Council Linkage grant. Two anonymous reviewers are thanked for their constructive comments which improved the manuscript.