rotalidia rotalidia rotalidia comprises a class of foraminifera where foraminifera is regarded as a phylum, (kingdom protista or rhizaria, not chromista) that unites foraminifera that have tests composed of secreted lamellar calcium carbonate, optically radial or granular calcite, or aragonite; separating them from those with porcelaneous, agglutinated, or microgranular, tests, or tests composed of organic compounds. seven orders are included, the: rotaliida delage & hérouard, 1896 carterinida loeblich & tappan, 1981 globigerinida delage & hérouard, 1896 involutinida hohenegger & piller, 1977 lagenida delage & hérouard, 1896 silicoloculinida resig et al. 1980 spirillinida hohenegger & piller, 1975. rotalidia ammonia beccarii (rotaliidae) scientific classification domain: eukaryota (unranked): sar (unranked): rhizaria superphylum: retaria phylum: foraminifera class: rotalidia orders see text