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Cassidulina (foraminifera)

Cassidulina is a genus of foraminifera described in the Treatise Part C., as having a free, lenticular test, with central boss of clear calcite on either side. Chambers are biserially arranged, enrolled planispirally with a subangular to keeled periphery. The wall is calcareous, hyaline (glassy), optically granular, perforate. The surface is smooth with a polished appearance. Sutures are radial to oblique, straight or curved. The aperture is a narrow arched slip at the base of the apertural face, partly closed by an apertural place.

Species
Cassidulina albemariensis McCulloch, 1977 • Cassidulina alternans Yabe & Hanzawa, 1925 • Cassidulina asanoi Uchio, 1950 • Cassidulina bradshawi Uchio, 1960 • Cassidulina braziliensis Cushman, 1922 • Cassidulina caledoniana McCulloch, 1981 • Cassidulina carapitana Hedberg, 1937 † • Cassidulina carinata Silvestri, 1896 • Cassidulina costatula Cushman, 1933 • Cassidulina cretacea Cushman, 1931 • Cassidulina crustosa Saidova, 1975 • Cassidulina curvata Phleger & Parker, 1951 • Cassidulina curvatiformis McCulloch, 1977 • Cassidulina cushmani R.E. & K.C. Stewart, 1930 • Cassidulina deafueraensis McCulloch, 1977 • Cassidulina delicatiformis (McCulloch, 1977) • Cassidulina detierraensis McCulloch, 1977 • Cassidulina differens McCulloch, 1977 • Cassidulina elegantissima Cushman, 1925 • Cassidulina globosa Hantken, 1865 • Cassidulina hoodensis McCulloch, 1977 • Cassidulina inflatiformis McCulloch, 1977 • Cassidulina insueta Cushman, 1947 • Cassidulina izuensis Aoki, 1967 • Cassidulina kasiwazakiensis Husezima & Maruhasi, 1944 • Cassidulina laevigata d'Orbigny, 1826 • Cassidulina limbata Cushman & Hughes, 1925 • Cassidulina lineocorrugata McCulloch, 1977 • Cassidulina lobulata McCulloch, 1977 • Cassidulina lomitensis Galloway & Wissler, 1927 • Cassidulina margareta Karrer, 1877 † • Cassidulina marshallana Todd, 1954 • Cassidulina moluccensis Germeraad, 1946 • Cassidulina monicaniformis McCulloch, 1977 • Cassidulina monstruosa Voloshinova, 1952 † • Cassidulina neoteretis Seidenkrantz, 1995 • Cassidulina norvangi Thalmann, 1952 • Cassidulina obtusa Williamson, 1858 • Cassidulina oshimai Aoki, 1967 • Cassidulina palmerae Bermúdez & Acosta, 1940 • Cassidulina patula Cushman, 1933 • Cassidulina penangensis McCulloch, 1977 • Cassidulina perumbonata Keyzer, 1953 • Cassidulina pilasensis McCulloch, 1977 • Cassidulina planata Saidova, 1975 • Cassidulina planulata McCulloch, 1977 • Cassidulina pulchella d'Orbigny, 1839 • Cassidulina quadrata Cushman & Hughes, 1925 • Cassidulina radiata Chave, 1987 • Cassidulina rarilocula Cushman, 1933 • Cassidulina reniforme Nørvangi, 1945 • Cassidulina seca McCulloch, 1977 • Cassidulina simpsonsbayensis McCulloch, 1977 • Cassidulina spiniferiformis McCulloch, 1977 • Cassidulina spiralis Natland, 1938 • Cassidulina striatostoma Zheng, 1979 • Cassidulina subcalifornica Drooger, 1953 • Cassidulina subcarinata Uchio, 1960 • Cassidulina sublaevigata Hofker, 1956 • Cassidulina sublimbata Asano & Nakamura, 1937 • Cassidulina subtumida Cushman, 1933 • Cassidulina teretis Tappan, 1951 • Cassidulina tortuosa Cushman & Hughes, 1925 • Cassidulina translucens Cushman & Hughes, 1925 • Cassidulina tumida Natland, 1938 • Cassidulina velaensis McCulloch, 1981 • Cassidulina victoriensis Collins, 1974 • Cassidulina vulgata McCulloch, 1977 • Cassidulina wakasaensis Asano & Nakamura, 1937 • Cassidulina weinmanensis McCulloch, 1977 • Cassidulina wordeni McCulloch, 1977 • Cassidulina wrangellensis McCulloch, 1977 • Cassidulina yabei Asano & Nakamura, 1937 == References ==
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