As Nick pointed out in one of his recent-ish comments, it's possible to find sections of crinoid stems at Beltinge (West of the Rand). Crinoids are related to starfish and are better know as 'sea-lilies'. The full animal really does resemble a flower (See image of one living example). Although many live/d fixed to the sea bed, others are/were free-floating. The one most commonly found at Beltinge, Isselicrinus subbasaltiformis, was free floating, and is found globally. They come from the London Clay, the formation above those we get our shark teeth from. They are round to hexagonal in section.
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March 2023
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