Petrified Wood from Silesia, Czech Republic/Germany/Poland
Poland | |
| Kornaga collection |
| Roemer, C.F. (1870) Geologie von Oberschlesien: Erläuterungen + 50 Tafeln [Geology of Upper Silesia: Explanations + 50 panels]. Druck von R. Nischkowsky, Breslau, 587 pages. |
| Kuba Kornage collection |
Glacial deposit, Strzelce Opolskie, Gmina Strzelce Opolskie, Strzelce County, Opole Voivodeship, Poland