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Geiselodinium sphaericum
General Images Stratigraphy Description Literature Notes
sphaericum
Yu Jingxian, Sun Mongrong, Sun Suying and Mao Shaozhi (1981)
Lentin, J.K. and Williams, G.L. (1989)
active
Sanshuia sphaerica
Saeptodinium sphaericum
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