Lyracystis definitions

Lyracystis

1) Burgess Shale animal
Found on https://www.crosswordclues.com/clue/lyracystis

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Lyracystis

Lyracystis radiata is a Cambrian eocrinoid echinoderm known from the Burgess Shale. It is related to Gogia ...
Found on http://en.wikipedia.org/wiki/Lyracystis

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