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avancna's avatar

Sollasina and Eucladia

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The ophiocistoids Sollasina woodwardi (top) and Eucladia johnsoni from the Ludlow Epoch of Silurian England.

Unlike their Ordovician relatives of the genus Volchovia, only the undersides have been fossilized.
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WildbugWarrior1545's avatar

Eucladia looks like a starfish with large tentacles at the ends of its arms. That's something you don't see every day!

avancna's avatar

They're apparently most closely related to the sea urchins, and their tentacles are modified tube feet.

rachaelm5's avatar
Now THOSE are some nifty echinoderms. I like the colors you used - they grabbed my attention right away. :D
avancna's avatar
BTW, those are not eyes.