I found this Kallidecthes richardsoni Saturday at Mazon. It's preserved in the "life position" which is rare. But also it's tail is turned and fanned out from the dorsal side, which gives this quite the "fiji mermaid" look. This was my best find of the day (that was open) and my best example of this species so far.
Also there is an eye stalk present which is a bit strange. I didn't think this species had eye stalks.
Jack @fiddlehead have you seen eye stalks in this species before? And have you ever seen this tail fan preservation before?