Laevigatisporites sphaerotriangulus
- Citations total:
- 4
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Author - title
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| details | Westphalian C | Germany(Rhineland) | Ibrahim,A.C. Spore forms of the Agir horizon of the Ruhr Basin. | 1933 | |
| details | Westphalian B | W.Germany(N.Rhine) | Loose,F. Spores of the Bismarck Seam, Ruhr area. | 1934 | |
| details | Westphalian B | Westphalian C | Germany | Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. | 1944 |
| details | Middle Pennsylvanian | Iowa | Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa | 1986 |