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.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (for details please see, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.