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Nyktericysta beierensis
| beierensis | |
| Wan Chuanbiao and Zhang Ying, (1990) | |
| Wan Chuanbiao and Zhang Ying, (1990) | |
| N_beierensis, He et al., 2009, Nanjing Institute of Geology and Palaeontology, Nanjing 2100089 - 2.jpg | |
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