Linked from

The 3 pages that link to Protostome, each with the reason it gives.

• DeuterostomeCompared with: Protostomes are the principal bilaterian comparison in the traditional embryological classification.

• ChaetognathaCompared with: Arrow worms were historically grouped with protostomes, but molecular evidence complicates that placement.

• PhoronidNarrower topic: Molecular analyses place phoronids within the protostome animals.