Psophosphaera rugosa
- Citations total:
- 2
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| details | Late Devonian | USSR(Kazakh SSR) | Garetsky,R.G. et al. Stratigraphy and formational character of the Upper Devonian deposits in the region of the South Emba gravity maximum. | 1961 | |
| details | Late Famennian | USSR(Kazakh SSR) | Garetsky,R.G. et al. Lower Carboniferous and Upper Devonian deposits of the Zhanasu Region (Southern Embensky gravity maximum). | 1961 |