| original |
Caradocian |
|
Baltic |
Eisenack,A. Contributions to Annelid research |
1975 |
| details |
Wenlockian |
|
England(Staffordshire) |
Eisenack,A. Contributions to research on Annelids Ii |
1981 |
| details |
Llandeilian |
Rakvere |
Estonia |
Hints,O. Late Viruan (Caradoc) polychaete jaws from North Estonia and the St. Petersburg region. |
1998 |
| details |
Llandeilian |
Rakvere |
Russia(St.Petersburg) |
Hints,O. Late Viruan (Caradoc) polychaete jaws from North Estonia and the St. Petersburg region. |
1998 |
| details |
Middle Caradocian |
Late Ashgillian |
Estonia |
Hints,O. Ordovician eunicid polychaetes of Estonia and surrounding areas: review of their distribution and diversification. |
2000 |