Adeona

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Adeona is a genus of bryozoans, tiny colonial animals. It belongs to the family Adeonidae. Classification: Kingdom Animalia; Phylum Bryozoa; Class Gymnolaemata; Order Cheilostomatida; Family Adeonidae; Genus Adeona.

A common example is Adeona cellulosa from Australia. It forms large colonies that look like two joined sheets, with many small holes called fenestrae.