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Membranilarnax
| Membranilarnax | |
| Wetzel, O. (1933b) | |
| Sarjeant, W.A.S. (1985b) | |
| Active | |
| Family Gonyaulacales/Uncertain | |
| pterospermoides | |
| 71 | |
| 69 | |
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No synonyms
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No synonyms
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