Hyrtellosphaeridium
- Citations total:
- 2
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| details | Silurian | Early Devonian | USSR(Vologda) | Batanova,G.P. et al. Age of Pre-Middle Devonian sediments of the Volgograd District. | 1972 |
| details | Nd | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 |