Family
Cyclograptidae Bulman, 1938
| Images | ||||||
|---|---|---|---|---|---|---|
| GIT 120-2 | Dyadograptus praecursor | Dyadograptus praecursor Obut, 1960  | Lasnamägi Stage | holotype | |||
| GIT 539-55 | Dyadograptus praecursor | Dyadograptus praecursor Obut, 1960  | Lasnamägi Stage | 
| Images | ||||||
|---|---|---|---|---|---|---|
| GIT 120-2 | Dyadograptus praecursor | Dyadograptus praecursor Obut, 1960  | Lasnamägi Stage | holotype | |||
| GIT 539-55 | Dyadograptus praecursor | Dyadograptus praecursor Obut, 1960  | Lasnamägi Stage |