This should have some simpler overview though. I actually have some background in morphology of insects and crustaceans, and skimming first screens for a couple

This should have some simpler overview though. I actually have some background in morphology of insects and crustaceans, and skimming first screens for a couple of minutes gave me no idea what is it about. Looks like it's about the evolution of arthropod head from segmented worms, with disagreements on what arthropod parts are homologous (evolutionary correspondent) to which parts of segmented worms. Please correct me if I'm wrong.