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Palaeoperidinium primaevum
| primaevum | |
| Zheng Yahui and He Chengquan (1984) | |
| Zheng Yahui and He Chengquan (1984) | |
| P_primaevum, He et al., 2009, Nanjing Institute of Geology and Palaeontology, Nanjing 2100089.jpg | |
| questionably active | |
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No synonyms
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No synonyms
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