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From
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To
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Geolocation
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Author - title
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Year
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| details | Nd | Nd | Potonie,R. Synopsis of the genera of the sporae dispersae. Part 2 | 1958 | |
| details | Permian | Nd | Neviani,I. The stratigraphic value of conifer pollen in the Mesozoic | 1963 | |
| details | Late Permian | Mongolian Republic | Bobrov,V.A. et al. On Upper Permian coal-bearing formations of Southern Mongolia. | 1957 |