Helosphaeridium rarum
- Citations total:
- 3
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| original | Arenigian | China(Hupei) | Lu,L.-C. Acritarchs from the Dawan Formation (Arenigian) of Huanghuachang in Yichang, western Hubei. | 1987 | |
| details | Arenigian | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 | |
| details | Arenigian | China(Shansi) | Fang,X. Ordovician microflora from Ningqiang (Shaanxi) and Guangyuan (Sichuan) and its sedimentary environment. | 1990 |