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Some fossil crinoids, such as Pentacrinites, seem to have lived attached to floating driftwood and complete colonies are often found. Sometimes this driftwood would become waterlogged and sink to the bottom, taking the attached crinoids with it. The stem of Pentacrinites can be several metres long. Modern relatives of Pentacrinites live in gentle currents attached to rocks by the end of their stem, which is fairly short.
Wisdom said:Oh, I dunno:![]()
Wisdom said:kerb crawler has been closest to recognizing the form
Kerb Crawler said:Reminds me of a trumpet with a toilet plunger shoved in it.
Archibald Nixon said:
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