original |
Middle Ordovician |
|
Africa |
Taugourdeau,P. et al. Chitinozoans-Illustrated bibliographic analysis |
1967 |
original |
Nd |
|
Nd |
Achab,A. Chitinozoa from the Vaureal and Macasty Formations (Upper Ordovician), Ile d'Anticosti, Quebec, Canada. |
1978 |
original |
Late Ashgillian |
|
Morocco |
Elaouad-Debbaj,Z. Ashgillian chitinozoa of the Anti-Atlas, (Morocco). |
1984 |
original |
Early Llanvirnian |
|
Saudi Arabia |
Al-Hajri,S. Biostratigraphy of the Ordovician chitinozoa of Northwestern Saudi Arabia. (In: Palaeozoic Palynostratigraphy of the Kingdom of Saudi Arabia. B.Owens et al, editors) |
1995 |
original |
Late Telychian |
|
Saudi Arabia |
Paris,F. et al. Biostratigraphy and palaeogeographic affinities of Early Silurian chitinozoans from Central Saudi Arabia. (In: Palaeozoic Palynostratigraphy of the Kingdom of Saudi Arabia. B.Owens et al, editors) |
1995 |
original |
Late Caradocian |
Early Ashgillian |
Saudi Arabia |
Paris,F. et al. Ordovician chitinozoans from central Saudi Arabia. |
2000 |
original |
Late Hirnantian |
|
Algeria |
Paris,F. et al. The effects of the final stages of the Late Ordovician glaciation on marine palynomorphs (chitinozoans, acritarchs, leiospheres) in Well NI-2 (northeast Algerian Sahara). |
2000 |
original |
Middle Ordovician |
|
Canada(Newfoundland) |
Albani,R. et al. Integrated chitinozoan, conodont, and graptolitebiostratigraphy from the upper part of the Cape Cormorant Formation (Middle Ordovician), western Newfoundland. |
2001 |