51Fossil sites
Ärina Formation
Ärina Formation in Estonia: 51 fossil sites. Typical age: 445–443 million years (Ordovician).
51Fossil sites
3Finds
445–443 million yearsTypical age
OrdovicianMain period
Where its fossils were found
Ordovician
By geological period
Ordovician51
What was found
Trilobites · 3Pseudosphaerexochus, Valdariops
Towns with the most fossil sites nearby
PorkuniFossil sites: 17
RasalaFossil sites: 3
HaapsaluFossil sites: 2
HärglaFossil sites: 2
KuruFossil sites: 2
MälivereFossil sites: 2
SiugeFossil sites: 2
SootaguseFossil sites: 1
ArukülaFossil sites: 1
ArukülaFossil sites: 1
ÄrinaFossil sites: 1
HeltermaaFossil sites: 1
SooväljaFossil sites: 1
Koigi-AruFossil sites: 1
LammikuFossil sites: 1
RüngaFossil sites: 1
RöaFossil sites: 1
SeliFossil sites: 1
Other formations of the same period
Ordovician
Kahula Formation 114Vasalemma Formation 49Viivikonna Formation 48Kõrgessaare Formation 42Väo Formation 38Saunja Formation 36Adila Formation 34Rägavere Formation 32Toila Formation 32Kuldiga Formation 32Moe Formation 27Leetse Formation 20Kõrgekallas Formation 19Kallavere Formation 19Kandle Formation 18Hirmuse Formation 16Paekna Formation 16Pakri Sandstone 16Keila Formation 14Loobu Formation 12Tudulinna Formation 11Sillaoru Formation 10Johvi Formation 9Jonstorp Formation 9