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Ptilophyllum muelleri (Ettingsh.) comb. nov. from the Oligocene of Australia: Last of the Bennettitales?

Citation

McLoughlin, S and Carpenter, RJ and Pott, C, Ptilophyllum muelleri (Ettingsh.) comb. nov. from the Oligocene of Australia: Last of the Bennettitales?, International Journal of Plant Sciences, 172, (4) pp. 574-585. ISSN 1058-5893 (2011) [Refereed Article]


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Copyright 2011 The University of Chicago

DOI: doi:10.1086/658920

Abstract

Several small pinnate leaves of early Oligocene age from Cethana, Tasmania, are newly described and found to be conspecific with Anomozamites muelleri Ettingsh. recorded from coeval strata at Emmaville, northern New South Wales. These fossils are most probably referable to the Bennettitales on the basis of leaf size, leaflet shape, and venation patterns, in the absence of diagnostic cuticular details. They are transferred to Ptilophyllum on the basis of leaflet morphology and represent the youngest putative bennettitalean remains yet documented. Their occurrence reinforces previous arguments that the highest-paleolatitude fragments of southeastern Gondwana provided moist temperate refugia for the survival of Mesozoic gymnosperm taxa well into the Cenozoic.

Item Details

Item Type:Refereed Article
Keywords:gymnosperms, Paleogene, extinction, high latitude, ghost lineage, Lazarus taxa
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Plant biology not elsewhere classified
Objective Division:Environmental Management
Objective Group:Other environmental management
Objective Field:Other environmental management not elsewhere classified
UTAS Author:Carpenter, RJ (Dr Raymond Carpenter)
ID Code:95349
Year Published:2011
Web of Science® Times Cited:42
Deposited By:Biological Sciences
Deposited On:2014-09-30
Last Modified:2017-11-01
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