| details |
Middle Llandoverian |
|
Paraguay |
Wood,G.D. et al. Distinctive Silurian chitinozoans from the Itacurubi Group (Bargas Pena Shale), Chaco Basin, Paraguay. |
1991 |
| details |
Ordovician |
|
North Dakota |
Morgan,D.H. Chitinozoa from the Williston Basin in North Dakota. |
1964 |
| details |
Ordovician |
|
North America |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Silurian |
|
North America |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Devonian |
|
North America |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Silurian |
|
Nd |
Laufeld,S. Paleoecology of Silurian chitinozoans. |
1977 |
| details |
Nd |
|
Nd |
Taugourdeau,P. Several systematic attributes proposed for chitinozoa. |
1981 |
| details |
Ordovician |
Early Devonian |
Nd |
Matthes,H.W. Introduction to micropaleontology |
1956 |
| details |
Nd |
|
Nd |
Bockelie,T.G. The internal structures of species of Lagenochitina and Conochtina. |
1980 |
| details |
Arenigian |
|
Nd |
Achab,A. et al. Paleobiogeography of Ordovician chitinozoans |
1988 |
| details |
Caradocian |
Late Ludlovian |
Nd |
Jansonius,J. Systematics of the chitinozoa. |
1966 |
| details |
Nd |
|
Nd |
Jansonius,J. Morphology and classification of some chitinozoa |
1964 |
| details |
Nd |
|
Nd |
Eisenack,A. The microfauna of the Ostseekalke. 1. Chitinozoa, Hystrichosphaeres. |
1965 |
| details |
Ordovician |
Early Devonian |
Nd |
Deflandre,G. Groups Incertae Sedis.Hystrichospheres. chitinozoans. |
1952 |
| details |
Late Llandeilian |
Late Ludlovian |
Nd |
Jansonius,J. Systematics of the chitinozoa. |
1967 |
| details |
Early Arenigian |
Late Strunian |
Nd |
Combaz,A. Stratigraphy of the chitinozoans. |
1972 |
| details |
Nd |
|
Nd |
Tappan,H. Chitinozoan classification. |
1966 |