- 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
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Sphaerochitina | Sphaerochitina lycoperdoides | Czechoslovakia(Bohemia) | Wenlockian | |
| Sphaerochitina | Sphaerochitina lycoperdoides | Poland | Late Wenlockian | |
| Sphaerochitina | Sphaerochitina lycoperdoides | Sweden(Gotland) | Early Wenlockian | |
| Sphaerochitina | Sphaerochitina lycoperdoides | Belgium | Middle Wenlockian | |
| Sphaerochitina | Sphaerochitina sp | Wales(Powys) | Early Wenlockian | Middle Wenlockian |
| Sphaerochitina | Sphaerochitina sphaerocephala | Czechoslovakia(Bohemia) | Wenlockian | |
| Urnochitina | Urnochitina sp.A Dufk.,1995 sp. nov. | Czechoslovakia(Bohemia) | Wenlockian |