protostome

Noun

Meaning

protostome (plural protostomes)

Any animal, of the taxon Protostomia, in which the mouth is derived from the embryonic blastopore

Hyponyms

Related terms

Examples

If chaetognaths branched off from the protostomes before they evolved their distinctive protostome embryonic characters, they may have retained deuterostome characters inherited from early bilaterian ancestors. Source: Internet

The traditional view was that lophophorates were a mix of protostome and deuterostome features. Source: Internet

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