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Relating to small aquatic invertebrates belonging to a group of phyla characterized by the possession of lophophores. They include bryozoans, brachiopods, and phoronids.
- ‘One lophophorate phylum, the brachiopods, has a rich fossil record that dates back 600 Myr and contains more than 12,000 species; today, about 335 species are known.’
- ‘Phoronida is a second lophophorate phylum, comprising coelomate, vermiform animals living in chitinous tubes.’
- ‘Instead, Lophotrochozoa has a node-based definition, and is comprised of the ‘last common ancestor of the three traditional lophophorate taxa, the molluscs, and the annelids, and all of the descendants of that common ancestor’.’
- ‘In recent years, a new hypothesis of evolution has been proposed in which all molting animals fall into a single clade called Ecdysozoa and in which the lophophorate groups are considered to be protostomes rather than deuterostomes.’
- ‘Molecular data sets indicate that lophophorate phyla are trochozoans but generally do not support grouping bryozoans with the phoronids and brachiopods.’
A lophophorate animal.
- ‘Into the early 1990s most researchers and evidence suggested that the deuterostomes were composed of chordates, hemichordates, echinoderms, chaetognaths, and lophophorates.’
- ‘However, these two features are common in several different invertebrate phyla: tubular shells occur in, e.g., molluscs, annelids, lophophorates, and egg-shaped embryonic shells in, e.g., molluscs and bryozoans.’
- ‘They are lophophorates, and so are related to the Bryozoa and Phoronida.’
- ‘Also, the mollusc sequence grouped with the sequences from lophophorates (brachiopod and phoronid).’
- ‘The lophotrochozoan clade (defined as all the descendants of the last common ancestor of lophophorates, mollusks, and annelids) is more inclusive than originally suspected.’
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