Author: Herbert William Meyer
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 376
Book Description
This comprehensive systematic revision of the Bridge Creek flora is based on large collections of megafossil specimens from the John Day and Crooked River basins. The flora was found to be more diverse than previously recognized, with at least 125 species. At least 11 genera are extinct, but the majority are extant members of deciduous forests. The flora was derived from a variety of sources and represents a classic example of the broadleaved deciduous forests that became widespread at mid-latitudes following the Eocene-Oligocene climatic cooling.
The Oligocene Bridge Creek Flora of the John Day Formation, Oregon
Author: Herbert William Meyer
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 376
Book Description
This comprehensive systematic revision of the Bridge Creek flora is based on large collections of megafossil specimens from the John Day and Crooked River basins. The flora was found to be more diverse than previously recognized, with at least 125 species. At least 11 genera are extinct, but the majority are extant members of deciduous forests. The flora was derived from a variety of sources and represents a classic example of the broadleaved deciduous forests that became widespread at mid-latitudes following the Eocene-Oligocene climatic cooling.
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 376
Book Description
This comprehensive systematic revision of the Bridge Creek flora is based on large collections of megafossil specimens from the John Day and Crooked River basins. The flora was found to be more diverse than previously recognized, with at least 125 species. At least 11 genera are extinct, but the majority are extant members of deciduous forests. The flora was derived from a variety of sources and represents a classic example of the broadleaved deciduous forests that became widespread at mid-latitudes following the Eocene-Oligocene climatic cooling.
The Ancient Forests of Oregon
Author: Ralph Works Chaney
Publisher:
ISBN:
Category : Paleobotany
Languages : en
Pages : 76
Book Description
Publisher:
ISBN:
Category : Paleobotany
Languages : en
Pages : 76
Book Description
Fossil Flora of the John Day Basin, Oregon
Author: Frank Hall Knowlton
Publisher:
ISBN:
Category : Paleobotany
Languages : en
Pages : 264
Book Description
Publisher:
ISBN:
Category : Paleobotany
Languages : en
Pages : 264
Book Description
Handbook of Oregon Plant and Animal Fossils
Author: William N. Orr
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 316
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 316
Book Description
The Oligocene Haynes Creek Flora of Eastern Idaho
Author: Daniel I. Axelrod
Publisher: Univ of California Press
ISBN: 9780520098244
Category : History
Languages : en
Pages : 164
Book Description
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.
Publisher: Univ of California Press
ISBN: 9780520098244
Category : History
Languages : en
Pages : 164
Book Description
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.
Eocene and Oligocene Paleosols of Central Oregon
Author: Greg John Retallack
Publisher: Geological Society of America
ISBN: 9780813723440
Category : Science
Languages : en
Pages : 202
Book Description
Publisher: Geological Society of America
ISBN: 9780813723440
Category : Science
Languages : en
Pages : 202
Book Description
Guidebook
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 28
Book Description
The Geobiology and Ecology of Metasequoia
Author: Ben A. LePage
Publisher: Springer Science & Business Media
ISBN: 1402027648
Category : Science
Languages : en
Pages : 450
Book Description
The plant fossil record indicates that the genus Metasequoia was widely distributed throughout the Northern Hemisphere from the early Late Cretaceous to the Plio-Pleistocene. Today the genus has shrunk to one species with approximately 5,000 mature individuals in southeastern China’s Xiahoe Valley. This book distills the current understanding of the biology, ecology and physiology of fossil and living Metasequoia, current research directions and problems that remain unresolved.
Publisher: Springer Science & Business Media
ISBN: 1402027648
Category : Science
Languages : en
Pages : 450
Book Description
The plant fossil record indicates that the genus Metasequoia was widely distributed throughout the Northern Hemisphere from the early Late Cretaceous to the Plio-Pleistocene. Today the genus has shrunk to one species with approximately 5,000 mature individuals in southeastern China’s Xiahoe Valley. This book distills the current understanding of the biology, ecology and physiology of fossil and living Metasequoia, current research directions and problems that remain unresolved.
Central Oregon
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
Book Description
Bulletin
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1260
Book Description
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1260
Book Description