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(trochozoans). The second split is the molluscs, and the third consists of two sister phyla, annelids and nemerteans. Lastly remains the clade that consist of the phoronids and the brachiopods.

A number of fossil taxa can be identified as early Lophotrochozoans, even if their precise affinity remains contested. However, relevant Cambrian fossils are debated.

Characteristics

The clade Lophotrochozoa is named after the two distinct characteristics of its members; the lophophore, a feeding

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