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, D'autres acteurs importants de la mise en place des axes de polarité, identifiés chez les anthozoaires, doivent être caractérisés chez les médusozoaires, notamment dans les plans d'organisation des méduses

. Planulozoa, La voie BMP est impliquée dans la mise en place de l'axe dorso-ventral chez les bilatériens (Meinhardt, 2015), et de l'axe directeur chez les anthozoaires

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, Concernant les autres hydrozoaires, on peut envisager des acquisitions indépendantes de différenciation de zoïdes au sein de la colonie entre Filifera I + Filifera II, Filifera III, Siphonophora, et Leptothecata, ou bien une acquisition homologue avec des pertes ultérieures (chez les Aplanulata, via la perte de la colonialité, et chez les Filifera IV, 2010.

, l'hydre, ont été suivis de l'élimination de gènes spécifiques du muscle strié (TPM1b, TPM2b, et probablement une configuration identique pour un gène de MLC, Les dactylozoïdes (polypes défensifs armés de cnidocystes) ont été acquis à de multiples reprises, dans diverses lignées d'hydrozoaires, par convergence, 2010.

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