Author:
Swanson,V.;Dorning,K.J.
Year:
1977
Title:
Acritarchs and chitinozoa from the Whitcliffian (Silurian) Dinas Bran Beds of Llangollen, Clwyd, North Wales.
Reference:
Swanson,V. et al. (1977) Acritarchs and chitinozoa from the Whitcliffian (Silurian) Dinas Bran Beds of Llangollen, Clwyd, North Wales. Journal of the University of Sheffield Geological Society Vol. 7 # 2 P. 71- 78
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Genus Species Country(Region) From To
Sphaerochitina Sphaerochitina sphaerocephala Wales(Denbighshire) Leintwardinian Late Whitcliffian
Veryhachium Veryhachium sp Wales(Denbighshire) Sheinwoodian Downtonian
Visbysphaera Visbysphaera sp Wales(Denbighshire) Whitcliffian