Daniel I. Axelrod's Books

The Miocene Purple Mountain Flora of Western Nevada

By: Daniel I. Axelrod

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The Miocene Purple Mountain Flora of Western Nevada

By: Daniel I. Axelrod

In this study, nine florules from the Chloropagus Formation near Fernley, Nevada, are dated at 14.7-13.4 million years. The author finds that dominant mixed conifer forest and sclerophyll woodland species of the Sierra Nevada-Klamath region replaced exotic deciduous hardwoods in the two lowest sites. He concludes that this change reflects the loss of adequate summer rain as upwelling from a colder ocean resulted from spreading East Antarctic ice.

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Page Count

120

Publisher

Univ of California Press

Published Date

ISBN 10

0520097971

ISBN 13

9780520097971

The Oligocene Haynes Creek Flora of Eastern Idaho

By: Daniel I. Axelrod

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The Oligocene Haynes Creek Flora of Eastern Idaho

By: Daniel I. Axelrod

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.

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Page Count

164

Publisher

Univ of California Press

Published Date

ISBN 10

0520098242

ISBN 13

9780520098244

A Miocene (10-12 Ma) Evergreen Laurel-Oak Forest from Carmel Valley, California

By: Daniel I. Axelrod

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A Miocene (10-12 Ma) Evergreen Laurel-Oak Forest from Carmel Valley, California

By: Daniel I. Axelrod

This is a study of the Miocene Carmel flora of California, an evergreen laurel–oak forest that grew in a mild temperate (mean annual temperature of 15 degrees C), frost-free climate, with annual precipitation of about 760 mm (30 in.). Collectively, the Carmel and other Miocene floras like the San Pablo and Temblor (broad-leafed deciduous trees, with few evergreen species), the Puente (evergreen oak forest with chaparral species), the Mint Canyon, Ricardo, and Tehachapi (numerous arid subtropical scrub associated with oak woodland and chaparral species) suggest they foreshadowed a similar distribution of the different California vegetation zones today.

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Univ of California Press

Published Date

ISBN 10

0520915992

ISBN 13

9780520915992

The Eocene Thunder Mountain Flora of Central Idaho

By: Daniel I. Axelrod

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The Eocene Thunder Mountain Flora of Central Idaho

By: Daniel I. Axelrod

An Eocene (45 Ma) flora from Thunder Mountain caldera shows that montane conifer forest species from upper slopes descended to interfinger with mixed conifer-deciduous hardwood forest on the caldera floor then near 1700 m. Most species are allied to those in the western United States, but a few genera are in China. Precipitation was near 100 cm yearly, with most in summer.

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Page Count

108

Publisher

Univ of California Press

Published Date

ISBN 10

0520098234

ISBN 13

9780520098237

Book's by Daniel I. Axelrod

The Miocene Purple Mountain Flora of Western Nevada

The Miocene Purple Mountain Flora of Western Nevada

The Oligocene Haynes Creek Flora of Eastern Idaho

The Oligocene Haynes Creek Flora of Eastern Idaho

A Miocene (10-12 Ma) Evergreen Laurel-Oak Forest from Carmel Valley, California

A Miocene (10-12 Ma) Evergreen Laurel-Oak Forest from Carmel Valley, California

The Eocene Thunder Mountain Flora of Central Idaho

The Eocene Thunder Mountain Flora of Central Idaho

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