Assertion: arthropod | /r/HasProperty | onychophora
Facets:
Source sentences:
text: Tardigrades bear a circumoral nerve ring which has been homologised with the nerve ring of the ancestral ecdysozoan, and the arthropod (=Euarthropoda + Onychophora) protocerebrum, suggesting that the protocerebrum is homologous with the ancestral ecdysozoan brain.