File:Platyostoma sp. (fossil snail) (Onondaga Limestone, Middle Devonian; Port Colbourne, Welland County, Ontario, Canada) 1 (49075966411).jpg
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Summary
[edit]DescriptionPlatyostoma sp. (fossil snail) (Onondaga Limestone, Middle Devonian; Port Colbourne, Welland County, Ontario, Canada) 1 (49075966411).jpg |
Platyostoma sp. - fossil snail from the Devonian of Ontario, Canada. (abapertural view) (~1.85 centimeters across at its widest) The gastropods (snails & slugs) are a group of molluscs that occupy marine, freshwater, and terrestrial environments. Most gastropods have a calcareous external shell (the snails). Some lack a shell completely, or have reduced internal shells (the slugs & sea slugs & pteropods). Most members of the Gastropoda are marine. Most marine snails are herbivores (algae grazers) or predators/carnivores. Classification: Animalia, Mollusca, Gastropoda, Euomphalina, Platyceratidae Stratigraphy: Onondaga Limestone, Middle Devonian Locality: unrecorded/undisclosed site at or near Port Colbourne, Welland County, Ontario, Canada |
Date | |
Source | Platyostoma sp. (fossil snail) (Onondaga Limestone, Middle Devonian; Port Colbourne, Welland County, Ontario, Canada) 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@N05/49075966411 (archive). It was reviewed on 7 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
7 December 2019
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:06, 7 December 2019 | 2,111 × 1,332 (1.55 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/11 |
ISO speed rating | 80 |
Date and time of data generation | 13:53, 15 November 2019 |
Lens focal length | 11.614 mm |
Width | 4,000 px |
Height | 3,000 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 | 18:07, 16 November 2019 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 13:53, 15 November 2019 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 5.90625 |
APEX aperture | 6.90625 |
APEX exposure bias | −0.66666666666667 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Pattern |
Flash | Flash fired, compulsory flash firing, red-eye reduction mode |
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 | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Portrait |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 13:07, 16 November 2019 |
Unique ID of original document | E202605B9F43623FBF542FC349D9CFA6 |