- Author:
- Lister,T.R.;Downie,C.
- Year:
- 1967
- Title:
- New evidence for the age of the primitive Echinoid Myriastiches gigas
- Reference:
- Lister,T.R. et al. (1967) New evidence for the age of the primitive Echinoid Myriastiches gigas Palaeontology Vol. 10 # 2 P. 171- 174
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Veryhachium | Veryhachium rhomboidium | Nd | Early Ludlovian | |
| Veryhachium | Veryhachium trispinosum | Nd | Early Ludlovian | |
| Veryhachium | Veryhachium wenlockium | Nd | Early Ludlovian |