A special issue of the Annales Societatis Geologorum Poloniae, guest edited by Adam T. Halamski and entitled „Middle Devonian biota and environments of the Łysogóry Region (Poland)”, has been published. Six papers in this special issue are authored by 27 scientists from four countries (including three persons from IPal); generalities about this project can be found in the preface.

We investigated the biota (all living organisms) of the Skały Formation, a stratigraphic unit corresponding to sediments formed in the Devonian period, more exactly about 386–382 million years ago. Lithological, geochemical, and palaeontological data collected at Miłoszów (Holy Cross Mts., Poland) served for reconstructing a Middle Devonian ecosystem. 200 species of marine organisms are recorded, among which brachiopods with 68 species are the most diversified, followed by echinoderms and bryozoans. For the first time a detailed palaeoecological reconstruction of one of the most famous localities in Poland, the so-called brachiopod shale at Skały, has been presented. We explored the succession of communities, or, in other words, we showed which brachiopod species had genuinely co-existed the sea located in the area of the present-day Holy Cross Mountains, and which species had followed one another.
We concluded that the exceptionally rich biota of the Skały Formation corresponds to a period of particularly favourable conditions for marine organisms between the so-called Kačák Event about 386 million years ago and the Taghanic Event about 381 million years ago.