Papilliferum
- Citations total:
- 2
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| original | Arenigian | China(Hupei) | Yin,L.-M. New forms of acritarch from Early Ordovician sediments in Yichang, Hubei, China. | 1994 | |
| details | Ordovician | Nd | Servais,T. An annotated bibliographical review of Ordovician acritarchs | 1997 |