Upper Cretaceous
| Image |  |
|---|---|
| Description | volume 6 (in two parts) of the book series Maryland geological survey |
| Author/s |
author: William Bullock Clark Edward Wilber Berry Julia Anna Gardner Henry Augustus Pilsbry Maryland Geological Survey Ray Smith Bassler Lloyd William Stephenson Marcus I. Goldman |
| Publication date | 1916 |
| Language | English |
| Country of origin | United States |
| Wikipedia link | |
| Access work | |
| Copyright status | |
| Missing/wrong data? | Edit Wikidata item |