Acta Palaeontologica Polonica

Chitinozoans in biostratigraphy of the northern East Baltic Ashgillian. A preliminary report

Jaak Nolvak

Acta Palaeontologica Polonica 25 (2), 1980: 253-260

Acid-resistant microfossils have been studied from serial bore-core samples representing different facies of Ashgillian deposits. Chitinozoans are shown to hold better promise for detailed subdivision and section correlation than other scarce representatives of macro- or microfauna. According to their vertical distribution, three types of chitinozoan species having biostratigraphic significance can be distinguished.

Key words: Chitinozoans, Ashgillian, East Baltic, biostratigraphy.


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