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Geolocation
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Author - title
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| details | Early Cretaceous | USSR(Far East) | Bolkhovitina,N.A. et al. Spore-pollen complexes of the Suyfun Coal Seams (Far East). | 1963 | |
| original | Hauterivian | Barremian | USSR | Bolkhovitina,N.A. Fossil and contemporaneous spores of the Family Schizaeaceae. | 1961 |
| details | Early Cretaceous | USSR(Caucasus) | Bolkhovitina,N.A. Fossil and contemporaneous spores of the Family Schizaeaceae. | 1961 |