There are 4 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 81857 | W. Kiessling | Medusa Portland Cement Company North Quarry, Silica, bioherm (= Reef 2550 / coll. Sigler 1967 ( , '69)) Givetian - Devonian 3 - Ohio | Stumm (1969) |
| 206972 | J. Bauer | Medusa Portland Cement Company North-north Quarry (= Medusa North-north Quarry / coll. Kesling & Chilman) Givetian - Devonian 3 - Ohio | Kesling and Chilman (1978) |
| 206973 | J. Bauer | Medusa Portland Cement Company South Quarry (= Medusa South Quarry / coll. Kesling & Chilman) Givetian - Devonian 3 - Ohio | Kesling and Chilman (1978) |
| 206974 | J. Bauer | Medusa Portland Cement Company South-south Quarry (= Medusa South-south Quarry / coll. Kesling & Chilman) Givetian - Devonian 3 - Ohio | Kesling and Chilman (1978) |