There are 4 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 32294 | E. Kowalski | Sample 43, Puerto Rican Lignites C Oligocene/Late Oligocene - Cenozoic 4 - Puerto Rico | Graham and Jarzen (1969) |
| 32295 | E. Kowalski | Sample 45, Puerto Rican Lignites C Oligocene/Late Oligocene - Cenozoic 4 - Puerto Rico | Graham and Jarzen (1969) |
| 32297 | E. Kowalski | Sample 48, Puerto Rican Lignites C Oligocene/Late Oligocene - Cenozoic 4 - Puerto Rico | Graham and Jarzen (1969) |
| 32299 | E. Kowalski | Sample 50, Puerto Rican Lignites C Oligocene/Late Oligocene - Cenozoic 4 - Puerto Rico | Graham and Jarzen (1969) |