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Platycrinites
fossil echinoderm genus
Platycrinites, genus of extinct crinoids, or sea lilies, especially characteristic as fossils of Early Carboniferous marine deposits (359 million to 318 million years ago). Platycrinites, of moderate size, had a columnar stem with a twisted pattern, an unusual feature.
This article was most recently revised and updated by Richard Pallardy.
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