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Systematophora geminus
| geminus | |
| Riding, J.B. and Helby, R. (2001e) | |
| Riding, J.B. and Helby, R. (2001e) | |
| S_geminus, Riding and Helby, 2001e, Studies in Australian Mesozoic palynology II; Memoir of the Association of Australasian Palaeontologists, no.24, p.111-140 - E.jpg | |
| active | |
| 164.54 | |
| 160.85 | |
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No synonyms
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No synonyms
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