File:Anthocyrtium hispidum Haeckel - Radiolarian (34986365113).jpg
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| Description |
Magnification: 400x, bright field (negative image), stacked image Fundort / Site: Barbados Alter / Age: approx. 32-35 million years (late Eocene - early Oligocene) Präparation / Preparation: Andreas Drews, 2017 Radiolarians are unicellulars of diameter 0.1–0.2 mm that produce intricate mineral skeletons, typically with a central capsule dividing the cell into the inner and outer portions of endoplasm and ectoplasm.The elaborate mineral skeleton is usually made of silica. They are found as zooplankton throughout the ocean, and their skeletal remains make up a large part of the cover of the ocean floor as siliceous ooze. Due to their rapid turn-over of species, they represent an important diagnostic fossil found from the Cambrian onwards. (Source: Wikipedia) This is a stacked image, made by using a microscope and composed of dozens of single photos at different focus levels. For any information about stacking technique, please see: digital-photography-school.com/a-beginners-guide-to-focus... |
| Date | |
| Source | Anthocyrtium hispidum Haeckel - Radiolarian |
| Author | Picturepest |
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This image was originally posted to Flickr by Picturepest at https://flickr.com/photos/59923990@N05/34986365113. It was reviewed on 23 October 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:43, 19 May 2021 | | 4,252 × 6,863 (1.61 MB) | Tm (talk | contribs) | Reverted to version as of 13:27, 23 October 2017 (UTC) |
| 19:38, 19 May 2021 |  | 4,252 × 5,000 (1.7 MB) | Epipelagic (talk | contribs) | crop | |
| 13:27, 23 October 2017 |  | 4,252 × 6,863 (1.61 MB) | Tm (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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