3Fossil sites
'First' Formation
'First' Formation in Russia: 3 fossil sites. Typical age: 267–264 million years (Permian, Silurian).
3Fossil sites
0Finds
267–264 million yearsTypical age
PermianMain period
Where its fossils were found
PermianSilurian
By geological period
Permian2
Silurian1
Towns with the most fossil sites nearby
Other formations of the same period
Permian
Kazan Formation 209Lekvorkuta Formation 200Chandalaz Formation 143Omolon Formation 102Echii Formation 85Talata Formation 70Dulgalakh Formation 55Lyudyanza Formation 52Baikur Formation 47Ol'chan Formation 45Delendzha Formation 35Tastuba Formation 35Tumara Formation 34Gerkinskaya Formation 32Koshelevka Formation 31Vorkutskoy Formation 28Barabash Formation 27Urushten Formation 25Akachan Formation 24Kalinovka Formation 24Menkechen Formation 22Gizhiga Formation 22Orol Formation 21Shadrovskaya Formation 21