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Template:POTD/2008-06-17
Picture of the day archives
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2008 June
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Picture of the day
The 71st plate from German biologist
Ernst Haeckel's
Kunstformen der Natur
, showing
radiolarians
of the order
Stephoidea
. Radiolarians form intricate mineral
skeletons
, usually with a central capsule dividing the
cell
into inner and outer portions. Radiolarians are found as
zooplankton
throughout the ocean and are important
diagnostic fossils
, found from the
Cambrian
period onwards.
Image credit:
Ernst Haeckel
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