| details |
Ordovician |
|
Australia |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Ordovician |
|
Asia |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Silurian |
|
Asia |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Devonian |
|
Asia |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Ordovician |
|
Argentina(La Rioja) |
Volkheimer,W. et al. Ordovician chitinozoas of the Gualcamayo Formation in the type locality southwest of Guandacol, pre-cordillera of Rioja, Reublic of Argentina. |
1978 |
| details |
Llanvirnian |
Ludlovian |
Italy(Sardinia) |
Del Rio,M. et al. Discovery of chitinozoa from the Laconi Formation |
1978 |
| details |
Silurian |
|
Nd |
Laufeld,S. Paleoecology of Silurian chitinozoans. |
1977 |
| details |
Nd |
|
Baltic |
Zalusky,D.W. Paleobiogeography of chitinozoa. (In: Stratigraphic Micropaleontology of Atlantic Basin and Borderlands. F.M.Swain, editor) |
1977 |
| details |
Gedinnian |
Eifelian |
Spain |
Diez,M.D.C.R. et al. Chitinozoan zonation of the La Vid Formation (Gedinnian to Eifelian) in the Provinces of Leon and Oviedo, Spain. |
1977 |
| details |
Ordovician |
Silurian |
Sweden |
Grahn,Y. Chitinozoa and the Ordovician-Silurian boundary in Southern Sweden. |
1977 |
| details |
Late Gothlandian |
Early Devonian |
USSR |
Laufeld,S. Chitinozoans. |
1977 |
| details |
Late Gothlandian |
Early Devonian |
Czechoslovakia |
Laufeld,S. Chitinozoans. |
1977 |
| details |
Llanvirnian |
|
Morocco |
Deunff,J. Acritarch microplankton found in the Llanvirnian shales of the Anti-Atlas Mountains (Zagora-Morocco). |
1977 |
| details |
Silurian |
|
Canada(Gaspe Area) |
Achab,A. Palynostratigraphic study of several Layers of Silurian Formations of the Lac Matapedia Cyncline |
1975 |
| details |
Late Ordovician |
Silurian |
Alaska(North Slope) |
Carter,C. et al. Ordovician and Silurian fossils in Well cores from North Slope of Alaska. |
1975 |
| details |
Middle Ordovician |
|
Finland |
Tynni,R. Ordovician hystrichospheres and chitinozoans in limestone from the Bothnian Sea. |
1975 |
| details |
Silurian |
|
Romania |
Nastaseanu,S. et al. Paleogeographic evolution of Carboniferous terrains. General summary of the Paleozoic of Rumania. |
1975 |