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1 (phylum Bryozoa) The major subphylum of bryozoans, in which the lophophore surrounds the mouth but not the anus (in contrast to the Entoprocta). Many possess a calcite skeleton. Ectoprocts are mostly, but not exclusively, marine, and have an extensive fossil record from the Ordovician to the present.

2 See Bryozoa.

Subjects: Earth Sciences and Geography — Zoology and Animal Sciences.

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