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Author - title
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Year
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| details | Nd | Nd | Arai,M. et al. Megaspores of Sao Joao do Triunfo, Parana, Rio Bonito Formation, Permian. | 1983 | |
| details | Artinskian | Arai,M. et al. Megaspores from the Rio Bonito Formation of Sao Joao do Triunfo of Parana State, Brazil. | 1984 |