Veryhachium |
Veryhachium trispinosum
sp. nov. |
Africa |
Couvinian |
|
Veryhachium |
Veryhachium reductum
sp. nov. |
Africa |
Permian |
Triassic |
Veryhachium |
Veryhachium europaeum
|
Africa |
Silurian |
Devonian |
Veryhachium |
Veryhachium strictum
sp. nov. |
Africa |
Silurian |
Devonian |
Veryhachium |
Veryhachium exasperatum
|
Africa |
Devonian |
|
Veryhachium |
Veryhachium reductum
sp. nov. |
Africa(Sahara) |
Silurian |
|
Hystrichosphaeridium |
Hystrichosphaeridium patriarchum
sp. nov. |
Africa(Sahara) |
Silurian |
|
Veryhachium |
Veryhachium primaevum
sp. nov. |
Africa(Sahara) |
Tremadocian |
|
Veryhachium |
Veryhachium vetustum
sp. nov. |
Africa(Sahara) |
Tremadocian |
|
Veryhachium |
Veryhachium trispinosum
sp. nov. |
Baltic |
Silurian |
|
Duvernaysphaera |
Duvernaysphaera kraeuselii
|
Belgium |
Devonian |
|
Veryhachium |
Veryhachium asymmetricum
|
Canada |
Middle Devonian |
|
Veryhachium |
Veryhachium heterogonum
|
Canada |
Middle Devonian |
|
Veryhachium |
Veryhachium laevatum
sp. nov. |
Canada |
Middle Devonian |
|
Veryhachium |
Veryhachium furcillatum
|
Canada |
Devonian |
|
Veryhachium |
Veryhachium tetraedron
|
Canada |
Devonian |
|
Veryhachium |
Veryhachium ledanoisii
|
Canada |
Devonian |
|