15Fossil sites
Opoka Formation
Opoka Formation in Poland: 15 fossil sites. Typical age: 84–66 million years (Cretaceous).
15Fossil sites
7Finds
84–66 million yearsTypical age
CretaceousMain period
Where its fossils were found
Cretaceous
By geological period
Cretaceous15
What was found
Mosasaurs · 7Mosasaurus, Hainosaurus, Leiodon, Prognathodon
Towns with the most fossil sites nearby
WylągiFossil sites: 2
Ciszyca DolnaFossil sites: 2
Kazimierz DolnyFossil sites: 1
PrzedmieścieFossil sites: 1
PiotrawinFossil sites: 1
DorotkaFossil sites: 1
BronkowiceFossil sites: 1
Solec nad WisłąFossil sites: 1
Kolonia KaliszanyFossil sites: 1
MęćmierzFossil sites: 1
SulejówFossil sites: 1
LublinFossil sites: 1
Las GliniańskiFossil sites: 1
Other formations of the same period
Cretaceous