Baltisphaeridium eximium
- Citations total:
- 2
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| original | Early Ordovician | China(Hopei) | Li,Z.P. Acritarchs from the Upper Machiakou Formation of North China and its geological age. | 1982 | |
| details | Early Ordovician | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 |