| Name | Polycalyx J. C. Vega & S. Archangelsky |
| Authorship | J. C. Vega & S. Archangelsky |
| Rank | Genus |
| NomenclaturalStatus | NomLeg |
| Placed in | Austrocalyxaceae |
| Contains | Polycalyx sp. |
| Remarks | Type: P. laterale J. C. Vega & S. Archang. |
| Citation | 2001 Palaeontographica, Abt. B, Paläophytol. 257(lfg. 1-6): 3 |
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