By James W. Collinson (auth.), Thomas N. Taylor, Edith L. Taylor (eds.)
Antarctic Paleobiology discusses the present prestige of paleobiology, largely paleobotany and palynology in Antarctica, and the interrelationship of Antarctic floras to these of alternative Gondwana continents. It presents a huge insurance of the main teams of vegetation at the one hand, whereas at the different trying to overview the vegetational heritage and the actual and organic parameters that impression the distribution of floras via time and area. The biologic task is mentioned inside a framework of the geologic background, together with the tectonic and paleogeographic heritage of the sector. eventually, the reader will discover a finished bibliography of Gondwana paleobotany and palynology.
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Extra resources for Antarctic Paleobiology: Its Role in the Reconstruction of Gondwana
The antiquity of the forms prevents taxonomic affinity being used as a reliable guide, and no forms appear to have been coriaceous. The strongest candidates for an evergreen habit are among the conifers and cycads. However, Kimura and Sekido (1975) have shown the Nilssonia plant to have. been vinelike and deciduous, quite unlike frost-sensitive evergreen relict modern cycads, and most conifers are represented by abscissed shoots typical of modern deciduous conifers such as Metasequoia and Taxodium.
1. Predictions for continental glaciation and monsoonal circulation on Gondwana. Predictions Time Late Ordovician Late Silurian Early Devonian Early Carboniferous Late Carboniferous Permian-Early Jurassic Late Jurassic Continental glaciation Monsoonal circulation Yes No Yes Yes Yes No Yes Yes No No Weak Yes Strong Yes togeography. In Tiffney BR (ed) Geological Factors and the Evolution of Plants, Yale University Press, New Haven, pp 93-127 Barron EJ (1986) Mathematical climate m'Jdels: Insights into the relationship between climate and economic sedimentary deposits.
S (1987) model would predict glaciation. Although some evidence for glaciation in South America exists (Crowell et al. 1980), the event was apparently minor compared with the earlier one. A number of other inconsistencies are raised by the Van der Voo (1988) reconstruction. Although it is beyond the scope of this chapter to review all the paleoclimatic evidence, the following points need to be addressed. 1. Localities for the Clarkeia brachiopod fauna (Cocks 1972; =Malvinokaffric Realm of Boucot and Johnson 1973) lie within a relatively narrow latitudinal band, between 40 0 S and 60 0 S, in the Scotese reconstruction (Ziegler et al.
Antarctic Paleobiology: Its Role in the Reconstruction of Gondwana by James W. Collinson (auth.), Thomas N. Taylor, Edith L. Taylor (eds.)