File:1911 Britannica-Arachnida-Sao hirsuta.png
Summary
From Korschelt and Heider, after <a href="https://en.wikipedia.org/wiki/Joachim_Barrande" class="extiw" title="en:Joachim Barrande">Barrande</a>.
Five Stages in the development of the <a href="https://en.wikipedia.org/wiki/Trilobite" class="extiw" title="en:Trilobite">trilobite</a> Sao hirsuta.
A, Youngest stage.
B, Older stage with distinct pygidial carapace.
C, Stage with two free mesosomatic somites between the prosomatic and telsonic carapaces.
D, Stage with seven free intermediate somites.
E, Stage with twelve free somites; the telsonic carapace has not increased in size.
a, Lateral eye.
g, So-called facial “suture” (not really a suture).
p, Telsonic carapace.
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:19, 14 January 2017 | | 2,346 × 2,400 (347 KB) | 127.0.0.1 (talk) | <small>From Korschelt and Heider, after <a href="https://en.wikipedia.org/wiki/Joachim_Barrande" class="extiw" title="en:Joachim Barrande">Barrande</a>.</small><br>Five Stages in the development of the <a href="https://en.wikipedia.org/wiki/Trilobite" class="extiw" title="en:Trilobite">trilobite</a> <i>Sao hirsuta</i>.<br><p>A, Youngest stage.<br> B, Older stage with distinct pygidial carapace.<br> C, Stage with two free mesosomatic somites between the prosomatic and telsonic carapaces.<br> D, Stage with seven free intermediate somites.<br> E, Stage with twelve free somites; the telsonic carapace has not increased in size.<br><i>a</i>, Lateral eye.<br><i>g</i>, So-called facial “suture” (not really a suture).<br></p> <i>p</i>, Telsonic carapace. |
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