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Pentagonum sibiricum
| sibiricum | |
| Vozzhennikova, T.F. (1967) | |
| Vozzhennikova, T.F. (1967) | |
| P_aff_sibiricum Alberti, 1961, Palaeontographica, Abt. A vol.116, a.jpg | |
| active | |
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No synonyms
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