31Fossil sites
Vrabcha Formation
Vrabcha Formation in Bulgaria: 31 fossil sites. Typical age: 420–413 million years (Devonian, Silurian).
31Fossil sites
0Finds
420–413 million yearsTypical age
DevonianMain period
Where its fossils were found
DevonianSilurian
By geological period
Devonian23
Silurian8