| details |
Middle Ordovician |
|
USSR(Russian Platform) |
Umnova,N.I. Structural types of the Prosome and Operculum in the chitinozoa and their association with genera and species. |
1976 |
| details |
Middle Gothlandian |
|
USSR(Siberia) |
Lopushinskaya,T.V. et al. The Ordovician and Silurian of the Noginsk area of the Siberian Platform |
1983 |
| details |
Middle Gothlandian |
|
Illinois |
Collinson,C. et al. North American Paleozoic Chitinozoa |
1955 |
| details |
Maysvillian |
Early Gamachian |
Greenland |
Grahn,Y. et al. Chitinozoans from Ordovician and Silurian Shelf and Slope sequences in North Greenland. (In: Palaeozoic fossils and stratigraphy from North Greenland) |
1989 |
| details |
Llanvirnian |
|
Canada(Newfoundland) |
Achab,A. Llanvirnian chitinozoans, (Table Head Formation) of Western Newfoundland, Canada. |
1983 |
| details |
Llanvirnian |
Llandeilian |
USA(Appalachian Bn.) |
Grahn,Y. et al. Lower Middle Ordovician chitinozoa from the Southern Appalachians, United States |
1984 |
| details |
Llandeilian |
|
Spain |
Cramer,F.H. et al. Iberian chitinozoans |
1978 |
| details |
Llandeilian |
Caradocian |
Morocco |
Rahmani,K. Presence of chitinozoans, acritarchs and spores in the Paleozoic of the Rabat Region, Morocco. |
1978 |
| details |
Llandeilian |
|
Spain |
Cramer-Diez,F.H. et al. Llandeilian chitinozoans from Rioseco, Asturias, Spain. Preliminary note. |
1972 |
| details |
Llandeilian |
|
W.Germany(Baden) |
Bachmann,A. Micropalaeontological investigation of the Kuckersit-Kalk |
1967 |
| details |
Llandeilian |
Ashgillian |
USSR(Estonian SSR) |
Uutela,A. Age and dispersal of sedimentary erratics on the coast of southwestern Finland. |
1989 |
| details |
Llandeilian |
|
France(Aquitaine) |
Taugourdeau,P. Silurian chitinozoans from Aquitaine. |
1961 |
| details |
Llandeilian |
|
France(Aquitaine) |
Taugourdeau,P. Silurian chitinozoans from Aquitaine. |
1961 |
| details |
Llandeilian |
|
Europe |
Taugourdeau,P. Techniques of study, morphology and classification of chitinozoans. |
1966 |
| details |
Llandeilian |
|
Algeria |
Deunff,J. et al. Palynoplanktonic correlation in the Cambro-Ordovician of the Sahara |
1961 |
| original |
Llandeilian |
|
Baltic |
Eisenack,A. New Mikrofossils of the Baltic Silurian.1. |
1931 |
| details |
Llandeilian |
|
Europe |
Taugourdeau,P. et al. Chitinozoans-Illustrated bibliographic analysis |
1967 |