Stephanospermum ovoides
- Citations total:
- 3
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| details | Middle Pennsylvanian | Illinois | Darrah,E.L. The microstructure of some Pennsylvanian seeds and megaspores studied by maceration. | 1968 | |
| details | Middle Pennsylvanian | Iowa | Darrah,E.L. The microstructure of some Pennsylvanian seeds and megaspores studied by maceration. | 1968 | |
| details | Middle Pennsylvanian | Kansas | Darrah,E.L. The microstructure of some Pennsylvanian seeds and megaspores studied by maceration. | 1968 |