Author:
Vecoli,M.;Tongiorgi,M.;Abdesselam-Rouighi,F.-F.;Benzarti,R.;Massa,D.
Year:
1999
Title:
Palynostratigraphy of Upper Cambrian-upper Ordovician intracratonic clastic sequences, North Africa.
Reference:
Vecoli,M. et al. (1999) Palynostratigraphy of Upper Cambrian-upper Ordovician intracratonic clastic sequences, North Africa. Bollettino della SocietĀ  Paleontologica Italiana Vol. 38 # 3 P. 331- 341
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Genus Species Country(Region) From To
Vulcanisphaera Vulcanisphaera britannica Tunisia Tremadocian
Vulcanisphaera Vulcanisphaera britannica Algeria Tremadocian
Vulcanisphaera Vulcanisphaera capillata Tunisia Late Cambrian
Vulcanisphaera Vulcanisphaera capillata Algeria Late Cambrian