File:Quercus lobatus (California valley oak) (near Calistoga, California, USA) 1 (49092893853).jpg
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Summary
DescriptionQuercus lobatus (California valley oak) (near Calistoga, California, USA) 1 (49092893853).jpg |
Quercus lobatus Née, 1801 - California valley oak in California, USA. The species nomen is often spelled "lobata". Plants are multicellular, photosynthesizing eucaryotes. Most species occupy terrestrial environments, but they also occur in freshwater and saltwater aquatic environments. The oldest known land plants in the fossil record are Ordovician to Silurian. Land plant body fossils are known in Silurian sedimentary rocks - they are small and simple plants (e.g., Cooksonia). Fossil root traces in paleosol horizons are known in the Ordovician. During the Devonian, the first trees and forests appeared. Earth's initial forestation event occurred during the Middle to Late Paleozoic. Earth's continents have been partly to mostly covered with forests ever since the Late Devonian. Occasional mass extinction events temporarily removed much of Earth's plant ecosystems - this occurred at the Permian-Triassic boundary (251 million years ago) and the Cretaceous-Tertiary boundary (65 million years ago). The most conspicuous group of living plants is the angiosperms, the flowering plants. They first unambiguously appeared in the fossil record during the Cretaceous. They quickly dominated Earth's terrestrial ecosystems, and have dominated ever since. This domination was due to the evolutionary success of flowers, which are structures that greatly aid angiosperm reproduction. The California valley oak is native to parts of California. Classification: Plantae, Angiospermophyta, Fagales, Fagaceae Locality: grounds of Calistoga Petrified Forest, northern side of Petrified Forest Road, west-southwest of the town Calistoga, eastern Sonoma County, Coast Ranges of northwest-central California, USA See info. at: <a href="https://en.wikipedia.org/wiki/Quercus_lobata" rel="noreferrer nofollow">en.wikipedia.org/wiki/Quercus_lobata</a> |
Date | |
Source | Quercus lobatus (California valley oak) (near Calistoga, California, USA) 1 |
Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/49092893853 (archive). It was reviewed on 23 November 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
23 November 2019
Items portrayed in this file
depicts
some value
14 July 2010
0.003125 second
2.8
6.2 millimetre
image/jpeg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:31, 23 November 2019 | 3,000 × 3,496 (9.13 MB) | Ser Amantio di Nicolao | Transferred from Flickr via #flickr2commons |
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Metadata
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/320 sec (0.003125) |
F Number | f/2.8 |
ISO speed rating | 80 |
Date and time of data generation | 17:43, 14 July 2010 |
Lens focal length | 6.2 mm |
Width | 3,000 px |
Height | 4,000 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 16.0 (Macintosh) |
File change date and time | 22:52, 19 November 2019 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 17:43, 14 July 2010 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 8.3125 |
APEX aperture | 2.96875 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,460.905349794 |
Focal plane Y resolution | 16,483.516483516 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Landscape |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 17:52, 19 November 2019 |
Unique ID of original document | 94331323D9BE8E0CE7AF0DB0C975D253 |