Graptolites and palaeoscolecidans: Tradition and odds of stratigraphy

Abstract

The goal is to document the present state of the research of graptolites and their role as index fossils in the Ordovician of the Barrandian area. Problems of stratigraphic correlation and potential role of palaeosocolecidans are discussed.

Keywords

• Petr Kraft graptolites
• palaeoscolecidans
• stratigraphy
• diversity