1. Species Cassidulina akseli Digas, 1972
2. Species Cassidulina alabamensis Bandy, 1949 †
3. Species Cassidulina alata Seguenza, 1880 †
4. Species Cassidulina albemarlensis Mcculloch, 1977
5. Species Cassidulina arenasensis Cushman & Bermúdez, 1936 †
6. Species Cassidulina armosa Bandy, 1949 †
7. Species Cassidulina asanoi Uchio, 1950
8. Species Cassidulina auka Boltovskoy & Theyer, 1970
9. Species Cassidulina barbara Buzas, 1965 †
10. Species Cassidulina barbarana Cushman & Kleinpell, 1934 †
11. Species Cassidulina bogdanowiczi Konenkova, 2001 †
12. Species Cassidulina bradyi Serova, 1955 † (accepted > unreplaced junior homonym, Primary junior homonym of Cassidulina bradyi Norman, 1881 [C. bradyi Serova, 1955 refers to C. laevigata sensu Brady (1884), which was interpreted as C. teretis Tappan, 1951 by Barker (1960) and Jones (1994), a potential senior synonym])
13. Species Cassidulina braziliensis Cushman, 1922
14. Species Cassidulina bulbiformis Krasheninnikov, 1959 †
15. Species Cassidulina bulloides Pobedina, Voroshilova, Rybina & Kuznetsova, 1956 †
16. Species Cassidulina butonensis Keyzer, 1953 †
17. Species Cassidulina caledoniana McCulloch, 1981
18. Species Cassidulina carandelli Colom, 1943 †
19. Species Cassidulina carapitana Hedberg, 1937 †
20. Species Cassidulina caribbeanica McCulloch, 1981
21. Species Cassidulina caribeana Redmond, 1953 †
22. Species Cassidulina carinata Silvestri, 1896
23. Species Cassidulina caucasica Subbotina, 1952 †
24. Species Cassidulina caudriae Cushman & Stainforth, 1945 †
25. Species Cassidulina constellata Cushman & Bermúdez, 1936 †
26. Species Cassidulina convexilocula Subbotina, 1960 †
27. Species Cassidulina corbyi Cushman & Hughes, 1925 †
28. Species Cassidulina costatula Cushman, 1933
29. Species Cassidulina crassipunctata Cushman & Hobson, 1935 †
30. Species Cassidulina crepidula Kuwano, 1954 †
31. Species Cassidulina crescentaperta Arnal, 1984 †
32. Species Cassidulina cretacea Cushman, 1931
33. Species Cassidulina crispula Cushman & Bermúdez, 1936 †
34. Species Cassidulina crista Pishvanova, 1958 †
35. Species Cassidulina crustosa Saidova, 1975
36. Species Cassidulina cruysi Marks, 1951 †
37. Species Cassidulina curvata Phleger & Parker, 1951
38. Species Cassidulina curvatiformis McCulloch, 1977
39. Species Cassidulina deafueraensis McCulloch, 1977
40. Species Cassidulina delicatiformis (McCulloch, 1977)
41. Species Cassidulina detierraensis McCulloch, 1977
42. Species Cassidulina devonica Chapman, 1921 †
43. Species Cassidulina differens McCulloch, 1977
44. Species Cassidulina diversa Cushman & Stone, 1949 †
45. Species Cassidulina dominicana Bermúdez, 1949 †
46. Species Cassidulina elegantissima Cushman, 1925
47. Species Cassidulina gakhensis Serova, 2001 †
48. Species Cassidulina galvinensis Cushman & Frizzell, 1940 †
49. Species Cassidulina havanensis Cushman & Bermúdez, 1936 †
50. Species Cassidulina hoodensis McCulloch, 1977
51. Species Cassidulina imamurai Tai, 1959 †
52. Species Cassidulina inconspicua Hussey, 1949 †
53. Species Cassidulina inflatiformis McCulloch, 1977
54. Species Cassidulina insueta Cushman, 1947
55. Species Cassidulina izuensis Aoki, 1967
56. Species Cassidulina kernensis Smith, 1956 †
57. Species Cassidulina labiata Cushman & Bermúdez, 1936 †
58. Species Cassidulina laevigata d'Orbigny, 1826
59. Species Cassidulina lens Earland, 1934 †
60. Species Cassidulina limbata Cushman & Hughes, 1925
61. Species Cassidulina lineocorrugata McCulloch, 1977
62. Species Cassidulina lobatula Kaiho, 1984 †
63. Species Cassidulina lobulata McCulloch, 1977
64. Species Cassidulina lomitensis Galloway & Wissler, 1927
65. Species Cassidulina magna Voloshinova, 1952 †
66. Species Cassidulina margareta Karrer, 1877 †
67. Species Cassidulina mene Todd, 1970 †
68. Species Cassidulina menneri Serova, 1984 †
69. Species Cassidulina micae (Saidova, 1975)
70. Species Cassidulina moluccensis Germeraad, 1946
71. Species Cassidulina monicana Cushman & Kleinpell, 1934 †
72. Species Cassidulina monicaniformis McCulloch, 1977
73. Species Cassidulina monstruosa Voloshinova, 1952 †
74. Species Cassidulina moodysensis Cushman & Todd, 1945 †
75. Species Cassidulina multicamerata Keyzer, 1953 †
76. Species Cassidulina nakamurai Uchio, 1950 †
77. Species Cassidulina neoteretis Seidenkrantz, 1995
78. Species Cassidulina nojimana Kuwano, 1954 †
79. Species Cassidulina obtusa Williamson, 1858
80. Species Cassidulina okawaensis Yoshida, 1958 †
81. Species Cassidulina ozawai Lipparini, 1930 †
82. Species Cassidulina palmerae Bermúdez & Acosta, 1940
83. Species Cassidulina panzana Kleinpell, 1938 †
84. Species Cassidulina patula Cushman, 1933
85. Species Cassidulina penangensis McCulloch, 1977
86. Species Cassidulina perumbonata Keyzer, 1953
87. Species Cassidulina pilasensis McCulloch, 1977
88. Species Cassidulina planata Saidova, 1975
89. Species Cassidulina planulata McCulloch, 1977
90. Species Cassidulina porterensis Serova, 2001 †
91. Species Cassidulina pulchella d'Orbigny, 1839
92. Species Cassidulina pygmea Voloshinova, 1952 †
93. Species Cassidulina quadrata Cushman & Hughes, 1925
94. Species Cassidulina radiata Chave, 1987
95. Species Cassidulina rarilocula Cushman, 1933
96. Species Cassidulina reflexa Galloway & Wissler, 1927 †
97. Species Cassidulina reniforme Nørvang, 1945
98. Species Cassidulina rotulita Poag, 1966 †
99. Species Cassidulina schuermanni Souaya, 1965 †
100. Species Cassidulina seca McCulloch, 1977
101. Species Cassidulina sicula Seguenza, 1862 †
102. Species Cassidulina simpsonsbayensis McCulloch, 1977
103. Species Cassidulina singularis Troitskaya, 1970
104. Species Cassidulina spinifera Cushman & Jarvis, 1929 †
105. Species Cassidulina spiniferiformis McCulloch, 1977
106. Species Cassidulina spiralis Natland, 1938
107. Species Cassidulina striatostoma Zheng, 1979
108. Species Cassidulina stschedrini Saidova, 1961
109. Species Cassidulina subacuta (Gudina, 1966)
110. Species Cassidulina subcarinata Uchio, 1960
111. Species Cassidulina subcarpatica Ivanova, 1960 †
112. Species Cassidulina sublaevigata Hofker, 1956 †
113. Species Cassidulina subtumida Cushman, 1933
114. Species Cassidulina symmetrica LeRoy, 1944 †
115. Species Cassidulina tarchanensis Khutsieva, 1952 †
116. Species Cassidulina teretis Tappan, 1951
117. Species Cassidulina thomsoni Conato & Segre, 1974 †
118. Species Cassidulina tortuosa Cushman & Hughes, 1925
119. Species Cassidulina translucens Cushman & Hughes, 1925
120. Species Cassidulina tricamerata Galloway & Heminway, 1941 †
121. Species Cassidulina tumida Natland, 1938 (accepted > unreplaced junior homonym, Primary junior homonym of Cassidulina laevigata var. tumida Heron-Allen & Earland, 1922)
122. Species Cassidulina twiggsana Cushman, 1945 †
123. Species Cassidulina undata Kuwano, 1954 †
124. Species Cassidulina usitata Ivanova, 1960 †
125. Species Cassidulina valvulineriaformis Arnal, 1984 †
126. Species Cassidulina velaensis McCulloch, 1981
127. Species Cassidulina vestae Redmond, 1953 †
128. Species Cassidulina victoriensis Collins, 1974
129. Species Cassidulina vulgata McCulloch, 1977
130. Species Cassidulina wenmanensis Mcculloch, 1977
131. Species Cassidulina williami Kleinpell, 1938 †
132. Species Cassidulina woodsi Smith, 1948 †
133. Species Cassidulina wordeni McCulloch, 1977
134. Species Cassidulina wrangellensis McCulloch, 1977
135. Species Cassidulina yubariensis Kaiho, 1984 †
136. Subgenus Cassidulina (Orthoplecta) Brady, 1884 accepted as Orthoplecta Brady, 1884
     1. Species Cassidulina (Orthoplecta) clavata Brady, 1884 accepted as Orthoplecta clavata (Brady, 1884)
137. Species Cassidulina algida Cushman, 1944 accepted as Islandiella algida (Cushman, 1944) (unaccepted > superseded combination, Opinion of Miller (1993))
138. Species Cassidulina alternans Yabe & Hanzawa, 1925 accepted as Globocassidulina elegans (Sidebottom, 1910) (unaccepted > junior subjective synonym, Subjective junior synonym Opinion of Hasegawa and Nomura (1995))
139. Species Cassidulina angulosa Cushman, 1933 accepted as Paracassidulina angulosa (Cushman, 1933)
140. Species Cassidulina arata Finlay, 1939 † accepted as Globocassidulina arata (Finlay, 1939) †
141. Species Cassidulina australis Phleger & Parker, 1951 accepted as Islandiella australis (Phleger & Parker, 1951) (Type species of Cassidulita which is synonymised to Islandiella)
142. Species Cassidulina biora Crespin, 1960 accepted as Globocassidulina biora (Crespin, 1960) (unaccepted > superseded combination)
143. Species Cassidulina bradshawi Uchio, 1960 accepted as Cassidulina reniforme Nørvang, 1945 (Subjective junior synonym in opinion of Kawagata and Kamihashi (2016))
144. Species Cassidulina bradyi Norman, 1881 accepted as Evolvocassidulina bradyi (Norman, 1881) (Opinion of Nomura (1983))
145. Species Cassidulina brevis Aoki, 1968 accepted as Evolvocassidulina brevis (Aoki, 1968) (Opinion of Xu and Ujiie (1994))
146. Species Cassidulina brocha Poag, 1966 accepted as Globocassidulina brocha (Poag, 1966) (unaccepted > superseded combination, Opinion of Nomura (1983), Hasegawa and Nomura (1995))
147. Species Cassidulina calabra (Seguenza, 1880) † accepted as Burseolina calabra Seguenza, 1880 † (Type species of Burseolina)
148. Species Cassidulina californica Cushman & Hughes, 1925 accepted as Islandiella californica (Cushman & Hughes, 1925) (Opinion of Ujiie & Kusukawa, 1969)
149. Species Cassidulina charlottensis Cushman, 1925 accepted as Robertina charlottensis (Cushman, 1925) accepted as Robertinoides charlottensis (Cushman, 1925) (Opinion of Cushman (1933))
150. Species Cassidulina chipolensis Cushman & Ponton, 1932 † accepted as Cassigerinella chipolensis (Cushman & Ponton, 1932) †
151. Species Cassidulina clavata Brady, 1884 accepted as Orthoplecta clavata (Brady, 1884)
152. Species Cassidulina complanata Voloshinova, 1952 † accepted as Islandiella curvicamerata (Voloshinova, 1952) † (Subjective junior synonym Opinion of Voloshinova et al. (1970))
153. Species Cassidulina complanata Ujiié & Kusukawa, 1969 accepted as Globocassidulina complanata (Ujiié & Kusukawa, 1969) (Opinion of Nomura (1999) Junior homonym of Cassidulina complanata Voloshinova, 1952)
154. Species Cassidulina crassa d'Orbigny, 1839 accepted as Globocassidulina crassa (d'Orbigny, 1839)
155. Species Cassidulina cuneata Finlay, 1940 † accepted as Globocassidulina cuneata (Finlay, 1940) †
156. Species Cassidulina curvicamerata Voloshinova, 1952 † accepted as Islandiella curvicamerata (Voloshinova, 1952) † (Opinion of Voloshinova et al. (1970))
157. Species Cassidulina cushmani Stewart & Stewart, 1930 accepted as Takayanagia cushmani (Stewart & Stewart, 1930) (Opinion of Setoyama and Kaminski (2015))
158. Species Cassidulina delicata Cushman, 1927 accepted as Takayanagia delicata (Cushman, 1927)
159. Species Cassidulina depressa Asano & Nakamura, 1937 accepted as Globocassidulina depressa (Asano & Nakamura, 1937)
160. Species Cassidulina elegans Sidebottom, 1910 accepted as Globocassidulina elegans (Sidebottom, 1910)
161. Species Cassidulina excavata Voloshinova, 1952 accepted as Islandiella excavata (Voloshinova, 1952) (Opinion of Voloshinova et al. (1970))
162. Species Cassidulina gemma Todd, 1954 accepted as Globocassidulina gemma (Todd, 1954) (unaccepted > superseded combination, Opinion of Belford (1966))
163. Species Cassidulina globosa Hantken, 1875 accepted as Globocassidulina globosa (Hantken, 1875) (Opinion of Cicha et al. (1998))
164. Species Cassidulina inexculta Franzenau, 1890 † accepted as Burseolina inexculta (Franzenau, 1890) † (unaccepted > superseded combination, Opinion of Popescu (2006))
165. Species Cassidulina inflata Gudina, 1966 accepted as Islandiella inflata (Gudina, 1966) (Opinion of Feyling-Hanssen (1976))
166. Species Cassidulina inflata LeRoy, 1944 accepted as Lernella inflata (LeRoy, 1944) (Opinion of Nomura (1983))
167. Species Cassidulina islandica Nørvang, 1945 accepted as Islandiella islandica (Nørvang, 1945) accepted as Islandiella algida (Cushman, 1944) (Opinion of Nørvang (1958))
168. Species Cassidulina jamesoni McCulloch, 1977 accepted as Globocassidulina jamesoni (McCulloch, 1977)
169. Species Cassidulina japonica Asano & Nakamura, 1937 accepted as Islandiella japonica (Asano & Nakamura, 1937) (unaccepted > superseded combination, Opinion of Nomura (1983), Hasegawa and Nomura (1995))
170. Species Cassidulina jonesiana Brady, 1881 accepted as Ceratobulimina jonesiana (Brady, 1881)
171. Species Cassidulina kasiwazakiensis Husezima & Maruhasi, 1944 accepted as Cassidulita kasiwazakiensis (Husezima & Maruhasi, 1944) accepted as Islandiella kasiwazakiensis (Husezima & Maruhasi, 1944)
172. Species Cassidulina kattoi Takayanagi, 1953 accepted as Globocassidulina kattoi (Takayanagi, 1953) (Opinion of Zheng & Fu, 2008)
173. Species Cassidulina kazusaensis Asano & Nakamura, 1937 † accepted as Islandiella kazusaensis (Asano & Nakamura, 1937) † (unaccepted > superseded combination, Opinion of Nomura (1983), Hasegawa and Nomura (1995))
174. Species Cassidulina laticamerata Voloshinova, 1939 † accepted as Islandiella laticamerata (Voloshinova, 1939) † (Opinion of Voloshinova et al. (1970))
175. Species Cassidulina marshallana Todd, 1954 accepted as Burseolina marshallana (Todd, 1954)
176. Species Cassidulina mexicana Cushman, 1922 accepted as Cassidulinoides mexicana (Cushman, 1922)
177. Species Cassidulina minuta Cushman, 1933 accepted as Globocassidulina minuta (Cushman, 1933) accepted as Paracassidulina minuta (Cushman, 1933)
178. Species Cassidulina miocenica Voloshinova & Borovleva, 1952 † accepted as Islandiella miocenica (Voloshinova & Borovleva, 1952) † (Opinion of Voloshinova et al. (1970))
179. Species Cassidulina miuraensis (Higuchi, 1956) accepted as Cassidulinoides miuraensis Higuchi, 1956 accepted as Paracassidulina miuraensis (Higuchi, 1956)
180. Species Cassidulina modeloensis Rankin Ms., 1934 † accepted as Islandiella modeloensis (Rankin Ms., 1934) † (Opinion of Finger and Lipps (1990))
181. Species Cassidulina neocarinata Thalmann, 1950 accepted as Paracassidulina neocarinata (Thalmann, 1950) (Opinion of Seidenkrantz (1995))
182. Species Cassidulina nipponensis (Eade, 1969) accepted as Paracassidulina nipponensis (Eade, 1969) (Type species of Paracassidulina)
183. Species Cassidulina nitidula (Chaster) em. Heron-Allen & Earland, 1913 † accepted as Pninaella nitidula (Chaster, 1892)
184. Species Cassidulina norcrossi Cushman, 1933 accepted as Islandiella norcrossi (Cushman, 1933) (unaccepted > superseded combination, Opinion of Norvang (1959))
185. Species Cassidulina norvangi Thalmann, 1952 accepted as Cassidulina reniforme Nørvang, 1945 (Subjective junior synonym of C. reniforme in opinion of Hayward et al. (2010))
186. Species Cassidulina oblonga Reuss, 1850 accepted as Globocassidulina oblonga (Reuss, 1850) (Opinion of Cicha et al. (1998))
187. Species Cassidulina okinawaensis LeRoy, 1964 † accepted as Globocassidulina okinawaensis (LeRoy, 1964) † (Opinion of Nomura (1983))
188. Species Cassidulina orientale Cushman, 1925 accepted as Globocassidulina nipponensis Eade, 1969 accepted as Paracassidulina nipponensis (Eade, 1969) (unaccepted > junior homonym, Junior homonym of Cassidulina orientalis Cushman, 1922)
189. Species Cassidulina orientalis Cushman, 1922 accepted as Evolvocassidulina orientalis (Cushman, 1922)
190. Species Cassidulina oshimai Aoki, 1967 accepted as Paracassidulina oshimai (Aoki, 1967)
191. Species Cassidulina pacifica Cushman, 1925 accepted as Burseolina pacifica (Cushman, 1925)
192. Species Cassidulina paratortuosa Kuwano, 1954 accepted as Globocassidulina paratortuosa (Kuwano, 1954)
193. Species Cassidulina parkeriana Brady, 1881 accepted as Cassidulinoides parkeriana (Brady, 1881) (Type species of Cassidulinoides)
194. Species Cassidulina parva Hussey, 1949 † accepted as Cassidulina inconspicua Hussey, 1949 † (unaccepted > junior homonym, Nomen novum in Hussey [Thalmann] (1949) Junior homonym of Cassidulina subglobosa var. parva Asano & Nakamura, 1937)
195. Species Cassidulina pseudocrassa Hornibrook, 1961 † accepted as Globocassidulina pseudocrassa (Hornibrook, 1961) †
196. Species Cassidulina punctata Reuss, 1850 † accepted as Islandiella punctata (Reuss, 1850) † (Opinion of Cicha et al. (1998))
197. Species Cassidulina pupa d'Orbigny, 1839 accepted as Ehrenbergina pupa (d'Orbigny, 1839) (Opinion of Brady (1884))
198. Species Cassidulina quasisulcata Belford, 1966 accepted as Takayanagia quasisulcata (Belford, 1966) (Opinion of Hatta & Ujiie, 1992)
199. Species Cassidulina rossensis (Kennett, 1967) accepted as Globocassidulina rossensis Kennett, 1967 (unaccepted > superseded combination)
200. Species Cassidulina sagamiensis Asano & Nakamura, 1937 accepted as Paracassidulina sagamiensis (Asano & Nakamura, 1937) (Opinion of Nomura (1983))
201. Species Cassidulina sagmiensis Asano & Nakamura, 1937 accepted as Cassidulina sagamiensis Asano & Nakamura, 1937 accepted as Paracassidulina sagamiensis (Asano & Nakamura, 1937) (Incorrect spelling)
202. Species Cassidulina setanaensis Asano & Nakamura, 1937 accepted as Islandiella setanaensis (Asano & Nakamura, 1937) (Opinion of Nomura (1983), Hasegawa and Nomura (1995))
203. Species Cassidulina smechovi Voloshinova, 1952 † accepted as Islandiella smechovi (Voloshinova, 1952) † (Opinion of Voloshinova et al. (1970))
204. Species Cassidulina subcalifornica Drooger, 1953 accepted as Globocassidulina subcalifornica (Drooger, 1953) accepted as Globocassidulina depressa (Asano & Nakamura, 1937) (unaccepted > superseded combination)
205. Species Cassidulina subglobosa Brady, 1881 accepted as Globocassidulina subglobosa (Brady, 1881) (Type species of Globocassidulina)
206. Species Cassidulina sublimbata Asano & Nakamura, 1937 accepted as Islandiella sublimbata (Asano & Nakamura, 1937) (unaccepted > superseded combination, Opinion of Nomura (1983), Hasegawa and Nomura (1995))
207. Species Cassidulina sulcata Belford, 1966 accepted as Paracassidulina sulcata (Belford, 1966)
208. Species Cassidulina tomiyensis Uchio, 1951 accepted as Paracassidulina tomiyensis (Uchio, 1951)
209. Species Cassidulina vitalisi Majzon, 1948 † accepted as Globocassidulina vitalisi (Majzon, 1948) † (Opinion of Cicha et al. (1998))
210. Species Cassidulina wakasaensis Asano & Nakamura, 1937 accepted as Islandiella wakasaensis (Asano & Nakamura, 1937) (unaccepted > superseded combination, Opinion of Nomura (1983), Hasegawa and Nomura (1995))
211. Species Cassidulina winniana Howe, 1939 † accepted as Cassigerinella winniana (Howe, 1939) † accepted as Cassigerinella eocaenica Cordey, 1968 †
212. Species Cassidulina yabei Asano & Nakamura, 1937 accepted as Islandiella yabei (Asano & Nakamura, 1937) (unaccepted > superseded combination, Opinion of Nomura (1983), Hasegawa and Nomura (1995))
213. Species Cassidulina decorata Sidebottom, 1910 represented as Globocassidulina decorata (Sidebottom, 1910)
214. Species Cassidulina globulosa Egger, 1857 † (uncertain > taxon inquirendum, probably a senior synonym of Cassigerinella chipolensis in opinion of Pearson et al (2018))

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