| details |
Llanvirnian |
|
Canada(Newfoundland) |
Achab,A. Llanvirnian chitinozoans, (Table Head Formation) of Western Newfoundland, Canada. |
1983 |
| details |
Early Llandeilian |
|
Canada(Quebec) |
Achab,A. Succession of chitinozoan assemblage from the Middle Ordovician of Quebec and eastern Canada |
1986 |
| details |
Middle Ordovician |
|
Australia |
Achab,A. Provincialism of Ordovician chitinozoans. |
1988 |
| details |
Middle Ordovician |
|
Mexico |
Achab,A. Provincialism of Ordovician chitinozoans. |
1988 |
| details |
Late Arenigian |
Llanvirnian |
Canada(Quebec) |
Achab,A. Ordovician chitinozoan zonation of Quebec and Western Newfoundland. |
1989 |
| details |
Late Arenigian |
Llanvirnian |
Canada(Newfoundland) |
Achab,A. Ordovician chitinozoan zonation of Quebec and Western Newfoundland. |
1989 |
| details |
Early Ordovician |
|
Worldwide |
Achab,A. Biogeography of Ordovician chitinozoa. (In: Advances in Ordovician Geology. C.R.Barnes and S.H.Williams, editors) |
1991 |
| details |
Middle Ordovician |
|
Australia |
Achab,A. et al. Chitinozoan contribution to the Ordovician and Lower Silurian paleobiogeography. |
1992 |
| details |
Late Visean |
Early Namurian |
Egypt(Sinai) |
Zaslavskaya,N.M. et al. Recycled lower Paleozoic microfossils (Chitinozoa) in the Carboniferous of Sinai (Egypt) and Permo-Triassic of the Negev (Israel): Paleogeographic considerations. |
1995 |
| details |
Late Visean |
Early Namurian |
Israel |
Zaslavskaya,N.M. et al. Recycled lower Paleozoic microfossils (Chitinozoa) in the Carboniferous of Sinai (Egypt) and Permo-Triassic of the Negev (Israel): Paleogeographic considerations. |
1995 |
| details |
Late Llanvirnian |
Early Caradocian |
Canada(Arctic) |
Achab,A. et al. Ordovician chitinozoans from the Arctic Platform and the Franklinian Miogeosyncline in northern Canada |
1995 |
| details |
Late Arenigian |
|
China(Guizhou) |
Brocke,R. et al. Upper Arenigian to Lower Llanvirnian acritarch assemblages from South China: a preliminary evaluation. |
2000 |
| details |
Late Arenigian |
|
China(Hupei) |
Brocke,R. et al. Upper Arenigian to Lower Llanvirnian acritarch assemblages from South China: a preliminary evaluation. |
2000 |
| details |
Late Arenigian |
|
China(Szechwan) |
Brocke,R. et al. Upper Arenigian to Lower Llanvirnian acritarch assemblages from South China: a preliminary evaluation. |
2000 |
| details |
Ashgillian |
|
Canada(Arctic) |
Achab,A. et al. The Laurentian Ordovician chitinozoan zonation: some modifications and some remaining problems. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |
| details |
Ashgillian |
|
Canada(Quebec) |
Achab,A. et al. The Laurentian Ordovician chitinozoan zonation: some modifications and some remaining problems. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |
| details |
Ashgillian |
|
Canada(Newfoundland) |
Achab,A. et al. The Laurentian Ordovician chitinozoan zonation: some modifications and some remaining problems. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |