File:Anthocyrtis grossularia Ehrenberg - Radiolarian (34728144180).jpg

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Summary

Description

Magnification: 1600x, bright field (negative image), stacked image

Fundort / Site: Barbados

Alter / Age: approx. 32-35 million years (late Eocene - early Oligocene)

Präparation / Preparation: Andreas Drews

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)
Date
Source Anthocyrtis grossularia Ehrenberg - Radiolarian
Author Picturepest

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This image was originally posted to Flickr by Picturepest at https://flickr.com/photos/59923990@N05/34728144180. It was reviewed on 23 October 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

23 October 2017

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19 April 2017

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