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Palmately lobed Proteaceae leaf fossils from the middle Eocene of South Australia

Citation

Carpenter, RJ and Hill, RS and Scriven, LJ, Palmately lobed Proteaceae leaf fossils from the middle Eocene of South Australia, International Journal of Plant Sciences, 167, (5) pp. 1049-1060. ISSN 1058-5893 (2006) [Refereed Article]


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Copyright Statement

Copyright 2006 The University of Chicago

DOI: doi:10.1086/505537

Abstract

Parafatsia subpeltata D. T. Blackburn from the Middle Eocene of Maslin Bay, South Australia, is reinterpreted as belonging to extinct Proteaceae rather than Araliaceae, as originally described. Leaf cuticles of Parafatsia exhibit brachyparacytic stomata and annular trichome bases associated with numerous basal epidermal cells, features that are diagnostically proteaceous. The leaf architecture is unique in Proteaceae in being palmately lobed, with basal actinodromous primary venation. Parafatsia leaves were very large with highly ornamented cuticles. They were presumably derived from evergreen, light-demanding woody plants that evolved in the high-latitude, warm, humid environments of the Southern Hemisphere but subsequently became uncompetitive as Australia drifted into lower latitudes.

Item Details

Item Type:Refereed Article
Keywords:Araliaceae, Proteaceae, Platanaceae, Proteales, fossil leaves, leaf cuticles
Research Division:Biological Sciences
Research Group:Plant Biology
Research Field:Plant Biology not elsewhere classified
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Documentation of Undescribed Flora and Fauna
Author:Carpenter, RJ (Dr Raymond Carpenter)
ID Code:95335
Year Published:2006
Web of Science® Times Cited:5
Deposited By:Biological Sciences
Deposited On:2014-09-30
Last Modified:2014-10-06
Downloads:0

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