Periplecotriletes crassus
- Citations total:
- 2
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| original | Middle Carboniferous | USSR(Ukrainian SSR) | Ishchenko,A.M. Atlas of microspores and pollen of the Middle Carboniferous Period in the western part of the Donets Basin. | 1952 | |
| original | Nd | Nd | Frederiksen,N.O. Sporomorphs of the Brookville Seam near Brookville, Pennsylvania. | 1961 |