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Spinidinium irmoechinatum
| irmoechinatum | |
| Heisecke, A.M. (1970) | |
| Heisecke, A.M. (1970) | |
| questionably active | |
| irmoechinatum | |
| Heisecke, A.M. (1970) | |
| Heisecke, A.M. (1970) | |
| questionably active | |