- Author:
- Grahn,Y.
- Year:
- 1988
- Title:
- Chitinozoan stratigraphy in the Ashgil and Llandovery. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors)
- Reference:
- Grahn,Y. (1988) Chitinozoan stratigraphy in the Ashgil and Llandovery. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors) British Museum (Natural History) Geology, Bulletin Vol. 43 P. 317- 323
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Acanthochitina | Acanthochitina barbata | Worldwide | Pushgillian | Cautleyan |
| Acanthochitina | Acanthochitina barbata | Scandinavia | Early Pushgillian | |
| Acanthochitina | Acanthochitina barbata | Libya | Early Pushgillian | |
| Acanthochitina | Acanthochitina barbata | North America | Early Pushgillian | |
| Acanthochitina | Acanthochitina barbata | Sweden | Early Ashgillian | |
| Acanthochitina | Acanthochitina rashidi | Worldwide | Late Pushgillian | Cautleyan |
| Acanthochitina | Acanthochitina rashidi | USA(Mid-Continent) | Ashgillian | |
| Acanthochitina | Acanthochitina sp | Worldwide | Ordovician | |
| Ancyrochitina | Ancyrochitina ancyrea | Worldwide | Late Ashgillian | Early Llandoverian |
| Ancyrochitina | Ancyrochitina convexa | Worldwide | Early Aeronian | |
| Ancyrochitina | Ancyrochitina convexa | USSR(Estonian SSR) | Middle Llandoverian | |
| Ancyrochitina | Ancyrochitina laevaensis | Worldwide | Late Hirnantian | Early Rhuddanian |
| Ancyrochitina | Ancyrochitina laevaensis | USSR(Estonian SSR) | Early Llandoverian | |
| Ancyrochitina | Ancyrochitina longispina | Worldwide | Late Pushgillian | Early Hirnantian |
| Ancyrochitina | Ancyrochitina longispina | Canada(Quebec) | Late Ashgillian | |
| Ancyrochitina | Ancyrochitina merga | Worldwide | Pushgillian | Rawtheyan |
| Ancyrochitina | Ancyrochitina merga | Libya | Early Ashgillian |