| details |
Ordovician |
Silurian |
China(Tibet) |
Xing,Y. A discovery of micropalaeophyta, chitinozoa and scolecodonts from Ordovician and Silurian in Keping, Xinjiang. |
1986 |
| 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 |
Ordovician |
Silurian |
Sweden |
Grahn,Y. Chitinozoa and the Ordovician-Silurian boundary in Southern Sweden. |
1977 |
| details |
Tremadocian |
Middle Caradocian |
USSR(Estonian SSR) |
Grahn,Y. Ordovician chitinozoa from Tallinn, Northern Estonia. |
1984 |
| details |
Osagean |
Meramecian |
Texas |
Cornell,W.C. Chitinozoa and acritarchs from the Las Cruces Limestone (Osagean-Meramecian) |
1987 |
| details |
Llanvirnian |
Ludlovian |
Italy(Sardinia) |
Del Rio,M. et al. Discovery of chitinozoa from the Laconi Formation |
1978 |
| details |
Wenlockian |
Ludlovian |
Argentina(Jujuy) |
Andreis,R.R. et al. Paleoenvironmental interpretation of the Paleozoic sequence outcrops at the Rio Grande, Zapla Mountains, Juyuy Province of Argentina, with consideration of age. |
1982 |
| details |
Llanvirnian |
Ludlovian |
Canada(NWT) |
Jansonius,J. Classification and stratigraphic application of chitinozoa. |
1970 |
| details |
Llanvirnian |
Llandeilian |
Spain |
Fombella,M.A. et al. New palynological results from the Oville Formation at Southwest Vozmediano, Leon (northwestern Spain). (In: Commision Internationale De |
1996 |
| details |
Early Arenigian |
Late Strunian |
Nd |
Combaz,A. Stratigraphy of the chitinozoans. |
1972 |
| details |
Caradocian |
Late Ludlovian |
Nd |
Jansonius,J. Systematics of the chitinozoa. |
1966 |
| details |
Late Llandeilian |
Late Ludlovian |
Nd |
Jansonius,J. Systematics of the chitinozoa. |
1967 |
| details |
Siegenian |
Emsian |
W.Germany(Rhineland) |
Eschghi,I. et al. Chitinozoans from the Lower Devonian of the Western Rheinisches Schiefergebirge, (Germany). |
1984 |
| 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 |
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 |
Late Llandoverian |
Early Wenlockian |
Indiana |
Wood,G.D. Paleoecologic and biostratigraphic significance of chitinozoans and microplankton from the Lower Silurian Osgood Member of the Salamonite Dolomite, Indiana and Kentucky, USA. |
1988 |