favocassidulina favocassidulina favocassidulina is a foraminiferal genus; rotaliid family cassidulinidae, known from the middle miocene to recent in the indian and pacific oceans. its habitat is benthic, near shore. favocassidulina scientific classification domain: eukaryota (unranked): sar (unranked): rhizaria superphylum: retaria phylum: foraminifera order: rotaliida superfamily: cassidulinacea family: cassidulinidae genus: favocassidulinaloeblich and tappan. 1957 the test wall is calcareous, finely perforate; primary wall indistinctly optically radial, as the calcite crystals are dendritic in form and occur in bundles; inner and outer surface of the wall covered by a microgranular veneer. variation in wall structure results in thick walls appearing optically granular. the surface is covered with a secondarily formed honeycomb network of narrow elevated ridges forming polygonal open areas.