Cenozoic Plants and Climates of the Arctic
Michael C. Boulter, Helen Fisher, Chief Scientific Advisor Helen Fisher
U.S. Government Printing Office, Dec 16, 1994 - Science - 401 pages
Fifty million years ago, the Arctic Ocean was a warm sea, bounded by lush vegetation of the warm-temperate shores of Scandinavia, Siberia, Alaska and the Northwest Territories. Wind and storms were rare because Atlantic weather systems had not developed but, as today, polar day length added a hostile element to this otherwise tranquil climate.
With the aid of scientists from all the countries close to the Arctic Circle, this book describes the palaeontology, the statistical analysis of vegetational features, comparisons with atmospheric, marine, and geological features and some of the first models of plant migration developed from newly constructed databases.
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The Atmosphere Tectonics and the Marine Realm
Comparisons with other Evidence
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analysis angiosperms appear Arctic Arcto-Tertiary Asia assemblages associated Basin Boulter boundary Cenozoic Central Central Europe climatic climatic change composition continental cooling correlation dated deciduous deposits dinoflagellate cysts distribution diversity DSDP Early eastern elements environments Eocene estimates et al Europe evidence Figure flora floristic forests Formation forms fossil genera Geol geology global Greenland Heer hemisphere high latitudes indicate interpretation Island Italy Kamchatka Late Cretaceous leaf leaves lignite localities lower marine mean Metasequoia Middle migration Miocene Neogene North America North Atlantic northern occurred Ocean Oligocene Palaeogene patterns period plants Pleistocene polar pollen present range record region relative remains represented response River Russian samples sediments similar species stage stomatal stratigraphic studies suggest Table taphoflora taxa temperate temperature Tertiary upper vegetation volcanic Walther warm western Wolfe Х Х