"What 2 former classes are now currently combined into this class and their status is lowered to clades?", "obligochaeta & hirundea" "How many setae do they have?", "no setae" "Do they have parapodia?", "none" "What is the name of the unique reproductive organ and what is its function?", "clitellum- produces a cocoon" "What is the evolutionary history of this class", "Triassic" "What habitats are these organisms found in?", "ocean in tidal zones"
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