- Author:
- Verniers,J.
- Year:
- 1999
- Title:
- Calibration of Chitinozoa versus graptolite biozonation in the Wenlock of Builth Wells district (Wales, U.K), compared with other areas in Avalonia and Baltica.
- Reference:
- Verniers,J. (1999) Calibration of Chitinozoa versus graptolite biozonation in the Wenlock of Builth Wells district (Wales, U.K), compared with other areas in Avalonia and Baltica. Bollettino della Societ Paleontologica Italiana Vol. 38 # 3 P. 359- 380
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| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Ancyrochitina | Ancyrochitina ancyrea | Wales(Powys) | Wenlockian | |
| Ancyrochitina | Ancyrochitina gutnica | England(Shropshire) | Late Llandoverian | Early Wenlockian |
| Ancyrochitina | Ancyrochitina gutnica | Sweden | Wenlockian | |
| Ancyrochitina | Ancyrochitina pachyderma | England(Shropshire) | Late Llandoverian | Early Wenlockian |
| Ancyrochitina | Ancyrochitina pachyderma | Wales(Powys) | Early Wenlockian | |
| Ancyrochitina | Ancyrochitina sp | Wales(Powys) | Wenlockian | |
| Ancyrochitina | Ancyrochitina sp.A | Wales(Powys) | Wenlockian | |
| Ancyrochitina | Ancyrochitina sp.B | Wales(Powys) | Wenlockian | |
| Ancyrochitina | Ancyrochitina sp.C | Wales(Powys) | Wenlockian | |
| Ancyrochitina | Ancyrochitina sp.D | Wales(Powys) | Early Wenlockian | |
| Angochitina | Angochitina longicollis | England(Shropshire) | Late Llandoverian | Early Wenlockian |
| Angochitina | Angochitina longicollis | Wales(Powys) | Early Wenlockian | |
| Angochitina | Angochitina longicollis | Sweden(Gotland) | Early Wenlockian | |
| Angochitina | Angochitina longicollis | Belgium | Early Wenlockian | |
| Angochitina | Angochitina sp.B Vern.& Rick.,1979 sp. nov. | Belgium | Early Wenlockian | |
| Belonechitina | Belonechitina sp | Czechoslovakia(Bohemia) | Wenlockian | |
| Bursachitina | Bursachitina sp | Wales(Powys) | Middle Wenlockian | Late Wenlockian |