The atlantid heteropods represent the only predatory. aragonite shelled zooplankton. Atlantid shell production is likely to be sensitive to ocean acidification (OA). and yet we know little about their mechanisms of calcification. https://www.spidertattooz.com/Messerschmitt-Me262A-1A-Fighter-Aircraft-LT-Walter-Hagenah-III-Jagdeschwader-7-Larz-Airfield-Germany-1945-German-Luft/