Library Open Repository
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, Aspect. pp. 239-247. ISSN 0080-4703
Hill_Extensive_...pdf | Download (286kB)
Available under University of Tasmania Standard License.
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.
|Keywords:||Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library|
|Journal or Publication Title:||Papers and Proceedings of the Royal Society of Tasmania|
|Page Range:||pp. 239-247|
|Collections:||Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania|
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.
|Date Deposited:||03 Aug 2012 01:17|
|Last Modified:||18 Nov 2014 04:39|
|Item Statistics:||View statistics for this item|
Actions (login required)
|Item Control Page|