[ref. ID; 7656 (K.A. Mikrjukov, 1994)]
Order Rotosphaerida Rainer, 1968
Rotosphaerida Rainer 1968 is a small order of heliozoan-like organisms without axonemes and extrusomes and covered by a cell coat containing various types of siliceous particles (scales, spicules or extraneous material).