Are hyoliths Palaeozoic lophophorates?
Hyoliths are extinct invertebrates with calcareous shells that were common constituents of the Cambrian fauna and formed a minor component of benthic faunas throughout the Palaeozoic until their demise in the end-Permian mass extinction. The biological affinity of hyoliths has long been controversia …
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Enlace: Are hyoliths Palaeozoic lophophorates?
