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    Impletosphaeridium shandongense
                    | shandongense | |
| He Chengquan, Zhu Shenzhao and Jin Guangxing (1989) | |
| Williams, G.L., Lentin, J.K. and Fensome, R.A., (1998) | |
| active | |
| 56 | |
| 34 | |
| 
                                                            No synonyms
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