Perotrilites spherotriangulatus
- Citations total:
- 2
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| original | Middle Kinderhookian | Missouri | Brown,D.D. Palynology of the Hannibal Formation, (Lower Mississippian), of northeast Missouri and western Illinois. | 1969 | |
| original | Middle Kinderhookian | Illinois | Brown,D.D. Palynology of the Hannibal Formation, (Lower Mississippian), of northeast Missouri and western Illinois. | 1969 |