Red algae cystocarp was found for the first time and the discovery of the close relationship between algae cystocarp and metal sulfides has supplied the evidence for biomineralization. 红藻囊果的发现及其与各种金属矿物之间密切的空间关系进一步证实生物参与了成矿作用。
A cystocarp is the fruiting structure produced in the red algae after fertilization, especially such a structure having a special protective envelope (as in
Polysiphonia).