Convolutispora tortuosa
- Citations total:
- 3
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| details | Tournaisian | Westphalian A | Greenland | Vigran,J.O. et al. Stratigraphy and depositional evolution of the Uppermost Devonian-Carboniferous, (Tournaisian - Westphalian), non-marine deposits in northeast Greenland. | 1999 |
| details | Late Tournaisian | Visean | Alaska | Ravn,R.L. Miospores of the Kekiktuk Formation (Lower Carboniferous), Endicott Field Area, Alaska North Slope. | 1991 |
| original | Chesterian | Iowa | Urban,J.B. Palynology and the Independence Shale of Iowa. | 1971 |