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Surculosphaeridium cribrotubiferum ssp. granulosum
| cribrotubiferum ssp. granulosum | |
| Jain, K.P. (1975) | |
| Jain, K.P. (1975) | |
| S_cribrotubiferum_ssp_granulosum, Jain, 1977b, the Paleobotanist.jpg | |
| questionably active | |
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No synonyms
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No synonyms
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