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acespicoli

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Plankton
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  • Spine variations in radiolarians as discovered by HMS Challenger in the 19th century and drawn by Ernst Haeckel
  • Cromyatractus tetracelyphus with 2 spines
    Cromyatractus tetracelyphus with 2 spines
  • Circopus sexfurcus with 6 spines
    Circopus sexfurcus with 6 spines
  • Circopurus octahedrus with 6 spines and 8 faces
    Circopurus octahedrus with 6 spines and 8 faces
  • Circogonia icosahedra with 12 spines and 20 faces
    Circogonia icosahedra with 12 spines and 20 faces
  • Circorrhegma dodecahedra with 20 (incompletely drawn) spines and 12 faces
    Circorrhegma dodecahedra with 20 (incompletely drawn) spines and 12 faces
  • Cannocapsa stethoscopium with 20 spines
    Cannocapsa stethoscopium with 20 spines

The gallery shows images of the radiolarians as extracted from drawings made by the German zoologist and polymath Ernst Haeckel in 1887.

 

acespicoli

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The green algae (sg.: green alga) are a group of chlorophyll-containing autotrophic eukaryotes consisting of the phylum Prasinodermophyta and its unnamed sister group that contains the Chlorophyta and Charophyta/Streptophyta. The land plants (Embryophytes) have emerged deep in the Charophyte alga as a sister of the Zygnematophyceae.[1][2][3]
 

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