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      The Bryozoa, also known as Ectoprocta or commonly as moss animals, are a phylum of aquatic invertebrate animals. Typically about 0.5 millimetres (0.020 in) long, they are filter feeders that sieve food particles out of the water using a retractable lophophore, a "crown" of tentacles lined with cilia. Most marine species live in tropical waters, but a few occur in oceanic trenches, and others are found in polar waters. One class lives only in a variety of freshwater environments, and a few members of a mostly marine class prefer brackish water. Over 4,000 living species are known. One genus is solitary and the rest colonial. The phylum was originally called "Polyzoa", but this term was superseded by "Bryozoa" in 1831. Another group of animals discovered subsequently, whose filtering mechanism looked similar, was also included in "Bryozoa" until 1869, when the two groups were noted to be very different internally. The more recently discovered group were given the name Entoprocta, while the original "Bryozoa" were called "Ectoprocta". However, "Bryozoa" has remained the more widely used term for the latter group.

Source: en.wikipedia.org/wiki/Bryozoa
Archimedes intermedius JK8177
Archimedes intermedius JK8178
Archimedes JK8179
Batostoma VH5130
Batostoma KP903
Batostoma KP698
Batostoma KP699
Batostoma p1908
Batostoma KP901
Batostoma YA279
Batostoma YA297
Batostoma YA366
Batostoma KP885
Berenicea veteraMergl (1983), Pl. III, fig. 1 MM139
Berenicea veteraMergl (1983), Pl. III, fig. 3 MM138
Berenicea veteraMergl (1983), Pl. III, fig. 4, 5 MM140
Bryozoa Ehrenberg, 1831 KP274
Bryozoa Ehrenberg, 1831 KP270
Bryozoa Ehrenberg, 1831 KP276
Bryozoa Ehrenberg, 1831 KP271

Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]