Extensive past distributions for major gondwanic floral elements: macrofossil evidence
Hill, RS and Carpenter, RJ (1991) Extensive past distributions for major gondwanic floral elements: macrofossil evidence. Papers and Proceedings of the Royal Society of Tasmania, Aspects of Tasmanian Botany: A Tribute to Winifred Curtis: A Symposium arranged by the Royal Society of Tasmania March 1991 . pp. 239-247. ISSN 0080-4703
|PDF - Requires a PDF viewer|
The past geographical positions and climates of the high latitude Southern Hemisphere land masses (New Zealand and the
southern parts of South America and Australia) are crucial to an understanding of plant evolution and migration in the region.
A review of the macrofossil record reveals many examples of taxa which are present as fossils on one or two of these land masses
but now occur elsewhere in the Southern Hemisphere. The main examples include Austrocedrus, Libocedrus (Cupressaceae),
Araucaria sectionColumbea (Araucariaceae) and Nothofagus subgenera Nothofagus and Fuscaspora in Australia, Eucalyptus
(Myrtaceae) and mn-Gymnostoma Casuarinaceae in New Zealand and probably South America, Araucaria section Intermedia
in New Zealand and Akania (Akaniaceae) and Dacrycarpus (Podocarpaceae) in South America. The local extinction of these
taxa is probably dae to a variety of factors, including climatic change, microsite changes due to the northward movement of
land masses, and changes in the frequency of catastrophic disturbance.
|Additional Information:||This Symposium is a tribute to the botanical work of Dr. Winifred M. Curtis AM, work largely concerned with Tasmanian plants. Scientific and public knowledge of the Tasmania flora has been greatly enhanced by her contributions.
Edited by M.R. Banks, S.J. Smith, A.E. Orchard and G. Kantvilas. – Copyright Royal Society of Tasmania
|Keywords:||Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library|
|Deposited By:||p doyle|
|Deposited On:||03 Aug 2012 11:17|
|Last Modified:||15 Aug 2012 11:06|
|ePrint Statistics:||View statistics for this ePrint|
Repository Staff Only: item control page