Page "Bryozoa" Paragraph 1

The phylum was originally called " Polyzoa ", but this term was superseded by " Bryozoa " in 1831.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.