Riccia beyrichiana
- Citations total:
- 2
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| details | Late Precambrian | Early Cambrian | USSR | Naumova,S.N. Plant microfossils of Precambrian and Lower Cambrian of Eurasia and their significance for stratigraphy. | 1974 |
| details | Late Carboniferous | Recent | Scotland(Fife) | Knox,E.M. The spores of Bryophyta compared with those of Carboniferous age. | 1939 |