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Geolocation
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Author - title
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Year
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| details | Nd | Nd | Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores | 1990 | |
| details | Wealden | Netherlands | Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 | 1956 | |
| details | Nd | Canada(Alberta) | Singh,C. Microflora of the Lower Cretaceous Mannville Group, east-central Alberta. | 1964 | |
| details | Triassic | Nd | Collinson,M.E. Diversification of modern Heterosporous Pteridophytes. (In: Pollen and Spores, Patterns of Diversification. S.Blackmore and S.H.Barnes, editors) | 1991 |