The Oligocene Haynes Creek Flora of Eastern Idaho

The Oligocene Haynes Creek Flora of Eastern Idaho PDF

Author: Daniel I. Axelrod

Publisher: Univ of California Press

Published: 1998-07-31

Total Pages: 164

ISBN-13: 9780520098244

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This flora of 70 species is dominated by deciduous trees, many with descendants in China. Precipitation was 890 mm, mean annual temperature 12.5°C, the annual range 10°C, and freezing rare. Elevation was about 1000 meters. Comparison with the Horse Prairie flora, 30 miles east and across the present continental divide, indicates that the divide was then low and discontinuous, with warmer climate to the east.

Late Cretaceous and Cenozoic History of North American Vegetation

Late Cretaceous and Cenozoic History of North American Vegetation PDF

Author: Alan Graham

Publisher: Oxford University Press

Published: 1999-03-25

Total Pages: 372

ISBN-13: 019511342X

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This book is a unique and integrated account of the history of North American vegetation and paleoenvironments over the past 70 million years. It includes discussions of the modern plant communities, causal factors for environmental change, biotic response, and methodologies. The history reveals a North American vegetation that is vast, immensely complex, and dynamic.

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