There are 2 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 49830 | W. Kiessling | Shumway Cyclothem, Mattoon Fm., Unit 10 Virgilian - Carboniferous 5 - Illinois | Scheihing and Langenheim (1980) |
| 49833 | W. Kiessling | Shumway Cyclothem, Mattoon Fm., Unit 7 Virgilian - Carboniferous 5 - Illinois | Scheihing and Langenheim (1980) |