Spore type U
- Citations total:
- 2
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From
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To
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Geolocation
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Author - title
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Year
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| original | Tertiary | India(Assam) | Sen,J. Microfossils of Assam Coal-Fields-I. The Coal Seam at Laitryngew and the age of the Cherra Sandstone. | 1948 | |
| original | Early Chesterian | Middle Chesterian | Oklahoma | Harris,R.W. Palynology of the Sand Branch Member of the Caney Shale Formation, (Mississippian), of Southern Oklahoma. | 1971 |