astrorhizana astrorhizana astrorhizana are a subclass of foraminifera characterized by simple tests composed of agglutinated material that can be irregular, spheroidal, or tubular and straight, branching or enrolled. tests are non septate and consist of a single chamber following the proloculus. these are the ammodiscacea of the textulariina in the treatise part c, (loeblich & tappan 1964) that range from the cambrian to recent. astrorhizanatemporal range: cambrian - recent astrorhiza limicola scientific classification (unranked): sar (unranked): rhizaria phylum: foraminifera class: astrorhizata subclass: astrorhizanasaidova, 1981 orders astrorhizida dendrofryida hippocrepinida saccamminida four orders are included, the astrorhizida, dendrofryida, hippocrepinida, and saccamminida.