| details |
Siegenian |
Emsian |
Germany(Rhineland) |
Eschghi,I. et al. The Emsian in the Old Red facies on the northern Side of the Stavelot-Venn Massif, Germany-Belgium. |
1974 |
| details |
Siegenian |
Emsian |
Belgium |
Eschghi,I. et al. The Emsian in the Old Red facies on the northern Side of the Stavelot-Venn Massif, Germany-Belgium. |
1974 |
| details |
Osagean |
Meramecian |
Texas |
Cornell,W.C. Chitinozoa and acritarchs from the Las Cruces Limestone (Osagean-Meramecian) |
1987 |
| details |
Ordovician |
|
S.Ireland(Clare) |
Downie,C. et al. Micropalaeontological evidence on the age of the Clara Group, (southeast Ireland). |
1968 |
| 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 |
Ordovician |
|
Africa |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Ordovician |
|
Europe |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Ordovician |
|
North America |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| 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 |
Ordovician |
|
USSR(Baltic) |
Myannil,R.M. The Zonal distribution of chitinozoans in the Ordovician of the East Baltic area. |
1972 |
| details |
Ordovician |
Early Devonian |
Nd |
Matthes,H.W. Introduction to micropaleontology |
1956 |
| details |
Ordovician |
Silurian |
China(Tibet) |
Xing,Y. A discovery of micropalaeophyta, chitinozoa and scolecodonts from Ordovician and Silurian in Keping, Xinjiang. |
1986 |
| details |
Ordovician |
|
Libya |
Combaz,A. et al. Observations on the structure of chitinozoans. |
1962 |
| details |
Ordovician |
|
Africa(Sahara) |
Combaz,A. et al. Observations on the structure of chitinozoans. |
1962 |
| details |
Ordovician |
|
Texas |
Kauffman,A.E. Chitinozoans in the subsurface Lower Paleozoic of West Texas |
1971 |
| details |
Ordovician |
Early Devonian |
Nd |
Deflandre,G. Groups Incertae Sedis.Hystrichospheres. chitinozoans. |
1952 |