Trachysphaeridium asemantum
- Citations total:
- 2
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| details | Devonian | USSR(Urals) | Medvedeva,A.M. Palynological investigation of Petroleum | 1978 | |
| details | Early Devonian | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 |