3Fossil sites
Alum Formation
Alum Formation in Norway: 3 fossil sites. Typical age: 484–483 million years (Ordovician, Cambrian).
3Fossil sites
14Finds
484–483 million yearsTypical age
OrdovicianMain period
Where its fossils were found
OrdovicianCambrian
By geological period
Ordovician2
Cambrian1
What was found
Trilobites · 14Apatokephalus, Bienvillia, Conophrys, Peltocare, Orometopus, Ceratopyge, Parabolinella, Platypeltoides, Plicatolina, Parabolina (Parabolina)
Towns with the most fossil sites nearby
Other formations of the same period
Ordovician
Valhallfonna Formation 118Elnes Formation 89Arnestad Formation 59Solvang Formation 57Husbergøya Formation 55Vollen Formation 51Furuberget Formation 50Tøyen Formation 37Langåra Formation 36Langøyene Formation 36Huk Formation 30Frognerkilen Formation 26Bønsnes Formation 20Kirtonryggen Formation 20Lunner Formation 19Nakholmen Formation 18Venstøp Formation 18Nakkholmen Formation 17Grimsøya Formation 16Skogerholmen Formation 16Bjørkåsholmen Formation 9Kalvsjøen Formation 8Gagnum Limestone 8Sørbakken Formation 7