original |
Middle Llandoverian |
Early Wenlockian |
Belgium |
Verniers,J. The Silurian chitinozoa of the Mehaigne area (Brabant Massif, Belgium). |
1982 |
original |
Late Lochkovian |
|
Czechoslovakia |
Paris,F. Chitinozoans. (In: The Lochkovian-Pragian boundary in the Lower Devonian of the Barrandian area (Czechoslovakia). I. Chlupac et al) |
1985 |
original |
Ludlovian |
|
Czechoslovakia |
Kriz,J. The Pridoli Series in the Prague Basin (Barrandian area, Bohemia). (In: A Global Standard for the Silurian System. C.H. Holland and M.G.Bassett, editors) |
1989 |
original |
Late Wenlockian |
Ludlovian |
Italy(Sardinia) |
Dufka,P. et al. A report on Silurian and Lowermost Devonian chitinozoans from Southwestern Sardina |
1996 |
original |
Emsian |
|
Canada(Quebec) |
Achab,A. et al. Chitinozoan assemblage from the third order transgressive-regressive cycles of the Upper Gaspe Limestones (Lower Devonian of eastern Canada) |
1997 |
original |
Late Ludfordian |
Early Pridolian |
Libya |
Jaglin,J.-C. et al. Biostratigraphy, biodiversity and palaeogeography of late Silurian chitinozoans from A1-61 borehole (north-western Libya) |
2002 |