Bryozoan Monticules: Excurrent Water Outlets?

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Science  30 Aug 1974:
Vol. 185, Issue 4153, pp. 783-784
DOI: 10.1126/science.185.4153.783


Monticules, regularly arranged modified areas on Paleozoic Bryozoa, may represent regions from which water currents produced by lophophores of adjacent feeding zoids escaped. Such circulation Patterns have been observed Recent forms.