| The base of the Silesian is undefined, the top is defined by the first appearance of the conodont Streptognathodus isolatus. |
| The dolomitic oncolite and shelly limestones with specific conodont fauna on the Anikaitse and Hulge cliffs are traditionally considered as the Soeginina Beds. |
| Through the climatic changes, conodont and ammonoid faunae were initially able to recover very quickly during the Early Triassic as unusually short-lived species emerged. |
| At one time or another, most of these have been regarded as conodont elements. |
| In the 1990s standard conodont and miospore zonations were applied. |
| For instance, the conodont Eoplacognathus pseudoplanus has a short range in the Middle Ordovician period. |
