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Geolocation
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Author - title
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Year
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| details | Nd | Nd | Pant,D.D. Suggestions for the classification and nomenclature of fossil spores and pollen grains | 1954 | |
| details | Nd | Nd | Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. | 1944 | |
| original | Late Triassic | Arizona | Daugherty,L.H. The Upper Triassic flora of Arizona. | 1941 |