| details |
Llandeilian |
Early Caradocian |
Canada(Quebec) |
Achab,A. Succession of chitinozoan assemblage from the Middle Ordovician of Quebec and eastern Canada |
1986 |
| details |
Rocklandian |
Edenian |
New York |
Hart,C.P. Trenton Group chitinozoans from New York State. A brief review. |
1986 |
| details |
Middle Ordovician |
|
New York |
Miller,M.A. et al. Guide to visited Middle Ordovician localities. (In: A Field excursion to Trenton Group, (Middle and Upper Ordovician) and Hamilton Group Middle Ordovician) localities in New York and a survey of their chitinozoans. M.A.Miller, editor) |
1986 |
| details |
Ordovician |
|
Canada(Arctic) |
Miller,M.A. et al. Ordovician palynology of Hudson Strait |
1988 |
| details |
Middle Ordovician |
|
Nd |
Achab,A. Provincialism of Ordovician chitinozoans. |
1988 |
| details |
Late Llanvirnian |
Caradocian |
Canada(Quebec) |
Achab,A. Ordovician chitinozoan zonation of Quebec and Western Newfoundland. |
1989 |
| details |
Late Llanvirnian |
Caradocian |
Canada(Newfoundland) |
Achab,A. Ordovician chitinozoan zonation of Quebec and Western Newfoundland. |
1989 |
| details |
Nd |
|
Nd |
Uutela,A. Age and dispersal of sedimentary erratics on the coast of southwestern Finland. |
1989 |
| details |
Middle Ordovician |
|
Worldwide |
Achab,A. Biogeography of Ordovician chitinozoa. (In: Advances in Ordovician Geology. C.R.Barnes and S.H.Williams, editors) |
1991 |
| details |
Late Chazyan |
Blackriveran |
Oklahoma |
Derby,J.R. et al. Biostratigraphy of the Timbered Hills, Arbuckle and Simpson Groups, Cambrian and Ordovician, Oklahoma; A review of correlation tools and techniques available to the explorationist. (In: Late Cambrian Ordovician Geology of the Southern Midcontinent, 1989 Symposium. K.S. Johnson, editor) |
1991 |