| |
Locality |
Layer |
|
Belgium, Hainaut, Charbonnages Elisabeth |
Niveau N |
|
|
Belgium, Hainaut, Charbonnages de Forte-Taille, sondage 2 |
Niveau O |
|
|
Belgium, Liège, Befre |
G1b |
|
|
Belgium, Liège, Befre |
G2a |
|
|
Great Britain, England,Lancashire, Holden Clough, Cowpe, Waterfoot |
crencellatum horizon |
|
|
Great Britain, England,Lancashire, Nuttal Mill, Brooksbottoms |
crencellatum horizon |