 Calicular view of corallum
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 Thrypticotrochus multilobatus, side view showing regeneration from fragments.
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 Thrypticotrochus multilobatus, side view showing regeneration from fragments.
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 view of serrate costal ornamentation
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 Thrypticotrochus multilobatus, fractured corallum revealing multiple paliform lobes.
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 View of multiple paliform lobes
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