- Author:
- Downie,C.;Sarjeant,W.A.S.
- Year:
- 1963
- Title:
- On the interpretation and status of some Hystrichosphere genera.
- Reference:
- Downie,C. et al. (1963) On the interpretation and status of some Hystrichosphere genera. Palaeontology Vol. 6 # 1 P. 83- 96
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Veryhachium | Veryhachium trisulcum | Nd | Ordovician | |
| Veryhachium | Veryhachium valensii | France(Poitou) | Bathonian | |
| Veryhachium | Veryhachium visbyense | Nd | Paleozoic |