| original |
Llanvirnian |
|
England(Shropshire) |
Jenkins,W.A.M. Ordovician chitinozoa from Shropshire. |
1967 |
| details |
Llanvirnian |
Caradocian |
Canada(NWT) |
Jansonius,J. Classification and stratigraphic application of chitinozoa. |
1970 |
| details |
Early Ordovician |
|
France(Mayenne) |
Deunff,J. et al. A microplankton of chitinozoans and acritarchs from some shale layers of the Lower Ordovician sandstone of Brittany (Mayene and South of Rennes). |
1970 |
| details |
Early Ordovician |
|
France(Ille-et-Vilaine) |
Deunff,J. et al. A microplankton of chitinozoans and acritarchs from some shale layers of the Lower Ordovician sandstone of Brittany (Mayene and South of Rennes). |
1970 |
| details |
Llanvirnian |
|
England(Shropshire) |
Myannil,R.M. Distribution of selected Ordovician chitinozoa assemblages and species in northern Europa and their stratigraphic Valuaton. |
1971 |
| details |
Late Arenigian |
Late Caradocian |
Nd |
Combaz,A. Stratigraphy of the chitinozoans. |
1972 |
| details |
Ordovician |
|
Spain |
Robardet,M. The originality of the Southern Iberian Peninsula Hercynian Segment of the Lower Paleozoic, Ordovician, Siluran and the Devonian in the northern Seville Province, Spain. |
1976 |
| details |
Ordovician |
|
Europe |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Llanvirnian |
Early Llandeilian |
Morocco |
Rahmani,K. Palynological study of the Paleozoic in the Region of Rabat, dating the Ordovician. |
1979 |
| details |
Nd |
|
Nd |
Taugourdeau,P. Several systematic attributes proposed for chitinozoa. |
1981 |
| details |
Osagean |
Meramecian |
Texas |
Cornell,W.C. Chitinozoa and acritarchs from the Las Cruces Limestone (Osagean-Meramecian) |
1987 |
| details |
Early Ordovician |
|
Scandinavia |
Achab,A. et al. Paleobiogeography of Ordovician chitinozoans |
1988 |
| details |
Early Ordovician |
|
Canada(Quebec) |
Achab,A. et al. Paleobiogeography of Ordovician chitinozoans |
1988 |
| details |
Early Ordovician |
|
Spitsbergen |
Achab,A. et al. Paleobiogeography of Ordovician chitinozoans |
1988 |
| details |
Early Ordovician |
|
Australia |
Achab,A. et al. Paleobiogeography of Ordovician chitinozoans |
1988 |
| details |
Middle Ordovician |
|
Nd |
Achab,A. Provincialism of Ordovician chitinozoans. |
1988 |
| details |
Nd |
|
Nd |
Achab,A. et al. New morphological characters observed in the order Operculatifera and their implications for the Suprageneric chitinozoan classification |
1993 |