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Geolocation
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Author - title
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| details | Late Albian | Cenomanian | USSR(Kazakh SSR) | Bolkhovitina,N.A. et al. Stratigraphy of the Continental Cretaceous deposits of the Lower Syr-Dar'Ya Uplift (Northeast Aral Region). | 1963 |
| original | Early Cretaceous | Cenomanian | USSR | Bolkhovitina,N.A. Fossil and contemporaneous spores of the Family Schizaeaceae. | 1961 |
| details | Nd | USSR(European) | Bolkhovitina,N.A. Fossil and contemporaneous spores of the Family Schizaeaceae. | 1961 |