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Hystrichosphaeridium calospinum
| calospinum | |
| He Chengquan, Zhu Shenzhao and Jin Guangxing (1989) | |
| He Chengquan, Zhu Shenzhao and Jin Guangxing (1989) | |
| H_calospinum, He et al., 2009, Nanjing Institute of Geology and Palaeontology, Nanjing 2100089.jpg | |
| active | |
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No synonyms
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No synonyms
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