About the Authors

Przemysław Gorzelak

pgorzelak@twarda.pan.pl

Affiliation Department of Biogeology, Institute of Paleobiology, Polish Academy of Sciences, Warsaw, Poland

Mariusz A. Salamon

Affiliation Department of Palaeontology and Biostratigraphy, Faculty of Earth Sciences, University of Silesia, Sosnowiec, Poland

Dawid Trzęsiok

Affiliation Department of Palaeontology and Biostratigraphy, Faculty of Earth Sciences, University of Silesia, Sosnowiec, Poland

Robert Niedźwiedzki

Affiliation Institute of Geological Sciences, Wrocław University, Wrocław, Poland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PG MAS DT. Performed the experiments: MAS DT. Analyzed the data: PG MAS DT RN. Wrote the paper: PG MAS.