Shell of Solemyarina velesiana - the thin shells have a high organic content and become very fragile and brittle when dried as in most museum collections
Taylor, J D, Glover, E A and Williams S T 2008. Ancient shallow water chemosymbiotic bivalves: systematics of Solemyidae of eastern and southern Australia. Memoirs of the Queensland Museum Nature 54 (1) 75–104.