Potamogeton gramineus
- Citations total:
- 2
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| details | Early Reuverian | W.Germany(N.Rhine) | Leschik,G. The origins of the Brown Coal of the Wetterau and its Micro-and Macroflora. | 1956 | |
| details | Quaternary | Wyoming | Santucci,V.L. The Yellowstone Paleontological Survey. | 1998 |