There are 3 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 158025 | M. Clapham | USGS 1487E, Pilot Mountain (coll. Ulrich 1902) Pendleian - Carboniferous 3 - Arkansas | Gordon (1964) |
| 158026 | M. Clapham | USGS 1492A, Jamestown Mountain (coll. Girty 1908) Arnsbergian - Carboniferous 3 - Arkansas | Gordon (1964) |
| 160493 | M. Clapham | USGS 3639 green, Cove Creek (coll. Taff, Purdue, Mesler, Smith, Ulrich 1904) Pendleian - Carboniferous 3 - Arkansas | Gordon (1964) |