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Thursday, August 6, 2020 | History

3 edition of A middle Eocene flora from the central Sierra Nevada found in the catalog.

A middle Eocene flora from the central Sierra Nevada

Harry D. MacGinitie

A middle Eocene flora from the central Sierra Nevada

by Harry D. MacGinitie

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  • 26 Currently reading

Published by Micro-Records Inc. in Baltimore .
Written in English


Edition Notes

First published in printed form, Washington D.C.: Carnegie Institution of Washington, 1941.

StatementHarry D. MacGinitie
SeriesCarnegie Institution of Washington publication -- 534
The Physical Object
FormatMicrofilm
Pagination1 microfilm reel
ID Numbers
Open LibraryOL14848460M

  HD MacGinitieAn early Middle Eocene flora from the Yellowstone-Absaroka Volcanic Province, Northwestern Wind River Basin, Wyoming California University Publications, Geological Sciences, (), pp. The University of Chicago Press. Books Division. Chicago Distribution Center.

Description: The Ulmaceae are a family of flowering plant that includes the elms (genus Ulmus), and the zelkovas (genus Zelkova).Members of the family are widely distributed throughout the north temperate zone, and have a scattered distribution elsewhere except for Australasia. MacGinitie, Harry D., , A Middle Eocene Flora From the Central Sierra Nevada; Carnegie Institution of Washington Publication , Washington, D.C. view here Pask, Joseph A. and Mort D. Turner, , Geology and Ceramic Properties of the Ione Formation, Buena Vista Area, Amador County, California ; Special Rep Division of Mines.

The upper reaches of the Sierra Nevada auriferous gold channels, California and Nevada 5 Fig. 4. Map of known and speculative Eocene-Oligocene paleovalleys of northern California and western Nevada, showing some places men- tioned in text and the locations of more detailed figures. This so-called Mount Reba Flora thus demonstrates that at least a lengthy segment of the central to southern Sierra Nevada has been uplifted thousands of feet by geologic forces during the past 7 million years, although sophisticated geophysical studies of regional rates of erosion and plate tectonics suggest that most of that mountain building.


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A middle Eocene flora from the central Sierra Nevada by Harry D. MacGinitie Download PDF EPUB FB2

Additional Physical Format: Online version: MacGinitie, H.D. (Harry Dunlap), Middle Eocene flora from the central Sierra Nevada. Washington, A Middle Eocene flora from the central Sierra Nevada. MLA Citation. MacGinitie, H. A Middle Eocene flora from the central Sierra Nevada Washington Australian/Harvard Citation.

MacGinitie, H.A Middle Eocene flora from the central Sierra Nevada. MacGinitie, Harry D.,A Middle Eocene Flora from the Central Sierra Nevada, Contributions to Paleontology—Carnegie Institution of Washington, PublicationWashington, D.C.

MacGinitie Text click here. MacGinitie Plates click here. MacGinitie H. () A Middle Eocene Flora from the Central Sierra Nevada, Carnegie Institution of Washington PublicationMabberley D.J.

() The Plant-Book, 2nd ed., Cambridge University Press, Cambridge, UK, p. adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86AAuthor: Du Bois, P Ernest. out of 5 stars A Sierra Nevada Flora Reviewed.

Reviewed in the United States on J I found this book to be a great help identifying plants in the field. Most can be identified without magnification. Plants are identified using dichotomous s: 9. In the Central Rocky Mountain region the early middle Eocene Kisinger Lakes assemblage in west- ern Wyoming indicates only moderate altitude; by the middle middle Eocene, however, western Wyoming had apparently achieved an altitude similar to the present, as indicated by the Green River assemblage.

A number of paleofloras of middle Miocene age are preserved in what are interpreted to be debris-dam lake deposits of the southern part of the Western Cascades, which occupied the northern Sierra Nevada region.

These include the Gold Lake, Webber Lake, and Mohawk floras found within the Mehrten Formation and its equivalents. Leaves of a new species of Celastrus L.

(Celastrus caducidentatus Liang XQ et ZK Zhou) are described from the middle Miocene of Zhenyuan, China. They have serrate theoid teeth with clear, deciduous setae and pinnate venation. The species is closely related to Celastrus paniculatus ssp.

paniculatus and probably belongs to subgenus Celastrus series Paniculati. A Middle Eocene Flora From The Central Sierra Nevada; Origin of gold in placer deposits of the Sierra Nevada Foothills, California; The Ione Formation of California; Geologic hazards associated with Eocene and Oligocene Sedimentary Units in the Sierra Nevada Foothills.

CGS Geologic Hazard Notice — Smectitic Sediments; Contact; About; Images. A middle Eocene flora from the central Sierra Nevada. Carnegie Institution of Washington Publication Manchester, Flora of the Ravenscrag Formation The Mathematica book, 5th ed. Wolfram Media, Champaign, Ill. But the definitive monograph on the Chalk Bluffs Flora came in when H.D.

MacGinitie published A Middle Eocene Flora from the Central Sierra Nevada, Carnegie Institute Of Washington Publication Here, MacGinitie describes some 67 species of Eocene plants from the Chalk Bluffs Flora, including such varieties as a cycad, palm, willow.

1. Introduction [2] The northern Sierra Nevada is characterized by substantial relief (2– km vertical elevation over km in the central and northern parts of the range) and average crestal elevations of > m above sea level (masl). Geodynamically, the northern part of the range behaves as a semirigid microplate, which is coupled to the Great Valley [Argus and Gordon.

The purported ash samara, Fraxinus flexifolia (Lesquereux) Brown () from the middle Eocene Green River Formation, is shown to be the same as small inequilateral legume leaflets identified as Mimosites coloradensis Knowlton.

Because the name Mimosites Bowerbank is restricted to legume pods with mimosoid affinities, the new combination Parvileguminophyllum coloradensis. Fossil fruit and seed flora from the Early Eocene Fisher/Sullivan site R.E.

Weems, G.J. Grimsley (Eds.), Early Eocene Vertebrates and Plants from the Fisher/Sullivan site (Najemoy Formation) Stafford County,Virginia Division of Mineral Resources publication, Virginia (), pp.

A Middle Eocene Flora From The Central Sierra Nevada Origin of gold in placer deposits of the Sierra Nevada Foothills, California The Ione Formation of California.

MacGinitie H. () A Middle Eocene Flora from the Central Sierra Nevada, Carnegie Institution of Washington PublicationHickey L. () Stratigraphy and paleobotany of the Golden Valley Formation (Early Tertiary) of western North Dakota, The.

Leaves and fruits of Ulmus from the Early–Middle Eocene of British Columbia and Washington are assigned to two species. Ulmus okanaganensis is based on leaves attached to flowering and fruiting twigs and isolated leaves and fruits. Leaves display a polymorphism ranging from large leaves with compound teeth with a blunt apex to small ones with simple teeth resembling those of Zelkova.

• MacGinitie, H.D. A middle Eocene flora from the central Sierra Nevada. Carnegie Institute of Washington Publication no. • Wolfe, J.A. Temperature parameters of humid to mesic forests of eastern Asia and relation to forests of other regions of the Northern Hemisphere and Australasia. U.S.G.S. Professional Paper The Sierra Nevada (/ s i ˌ ɛr ə n ɪ ˈ v æ d ə,-ˈ v ɑː d ə /) is a mountain range in the Western United States, between the Central Valley of California and the Great vast majority of the range lies in the state of California, although the Carson Range spur lies primarily in Sierra Nevada is part of the American Cordillera, an almost continuous chain of mountain.

The closure of the Panamanian Isthmus approximately three million years ago (), joining together South America and Central America, led to the Great American Interchange, a concept developed mainly for animals ().For plants, however, many paleobotanical and molecular biogeographic studies have demonstrated an exchange between the biota of North and South America long before the closing of .Description: Schizaeaceae is a family of ferns in the order Schizaeales.

In the Pteridophyte Phylogeny Group classification of (PPG I), it includes only two genera. Alternatively, two families kept separate in PPG I, Lygodiaceae and Anemiaceae, may be included in Schizaeaceae (as the subfamilies Lygodioideae and Anemioideae) so that the family has four genera.

The “Chalk Bluffs flora,” from the auriferous gravels at You Bet Diggings (Fig. 1), has been used to estimate the depositional age. Originally described as Capay stage and interpreted as middle Eocene by MacGinitie (), the Chalk Bluffs flora is now considered to be early Eocene (– Ma; Wing and Greenwood, ; Wolfe, ; Fricke and Wing, ), which is consistent .