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    Palaeoperidinium primaevum
                    | primaevum | |
| Zheng Yahui and He Chengquan (1984) | |
| Zheng Yahui and He Chengquan (1984) | |
| questionably active | |
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                                                            No synonyms
                                                     
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                                                            No synonyms
                                                     
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