Tranvikium |
Tranvikium polygonale
|
USSR(Estonian SSR) |
Late Arenigian |
Late Llanvirnian |
Veryhachium |
Veryhachium geometricum
|
Finland |
Late Arenigian |
Pridolian |
Veryhachium |
Veryhachium geometricum
|
USSR(Estonian SSR) |
Late Llanvirnian |
Early Caradocian |
Veryhachium |
Veryhachium irroratum
|
Finland |
Llanvirnian |
Caradocian |
Veryhachium |
Veryhachium irroratum
|
USSR(Estonian SSR) |
Caradocian |
Early Ashgillian |
Veryhachium |
Veryhachium lairdii
|
Finland |
Late Arenigian |
Ashgillian |
Veryhachium |
Veryhachium lairdii
|
USSR(Estonian SSR) |
Late Arenigian |
Early Ashgillian |
Veryhachium |
Veryhachium oklahomense
|
Finland |
Ashgillian |
|
Veryhachium |
Veryhachium oklahomense
|
USSR(Estonian SSR) |
Late Arenigian |
Early Ashgillian |
Veryhachium |
Veryhachium oligospinosum
|
Finland |
Caradocian |
Ashgillian |
Veryhachium |
Veryhachium oligospinosum
|
USSR(Estonian SSR) |
Caradocian |
Ashgillian |
Veryhachium |
Veryhachium reductum
|
Finland |
Llandeilian |
Pridolian |
Veryhachium |
Veryhachium reductum
|
USSR(Estonian SSR) |
Llandeilian |
Caradocian |
Veryhachium |
Veryhachium rhombispinosum
|
Finland |
Late Arenigian |
Ashgillian |
Veryhachium |
Veryhachium rhombispinosum
|
USSR(Estonian SSR) |
Late Arenigian |
Ashgillian |
Veryhachium |
Veryhachium trispinosum
|
Finland |
Late Arenigian |
Pridolian |
Veryhachium |
Veryhachium trisulcum
|
Finland |
Llandeilian |
Pridolian |