A regurgitalite of the Middle Triassic (Muschelkalk) from Upper Silesia (Poland)


  • Robert Niedźwiedzki Wrocław University, Institute of Geological Sciences; pl. M. Borna 9, 50-204 Wrocław, Poland https://orcid.org/0000-0002-6222-3977
  • Dawid Surmik University of Silesia in Katowice, Faculty of Natural Sciences, Institute of Earth Sciences; ul. Będzińska 60, 41-200 Sosnowiec, Poland http://orcid.org/0000-0003-0121-9592
  • Agnieszka Chećko University of Silesia in Katowice, Faculty of Natural Sciences, Institute of Earth Sciences, ul. Będzińska 60, 41-200 Sosnowiec, Poland; GEOsfera Ecological Education Center, Town Hall of Jaworzno, ul. św. Wojciecha 100, 43-600 Jaworzno, Poland https://orcid.org/0000-0001-5225-1408
  • Mariusz A Salamon University of Silesia in Katowice, Faculty of Natural Sciences, Institute of Earth Sciences; ul. Będzińska 60, 41-200 Sosnowiec, Poland https://orcid.org/0000-0001-9399-2798




bromalites, regurgitalites, Middle Triassic, Muschelkalk, Upper Silesia, Poland.


A bromalite from the Middle Triassic (Muschelkalk) of southern Poland, Sadowa Góra Quarry, is herein described and interpreted as a regurgitalite. The fossils occurring within the regurgitalite are angular and have sharp edges. They are represented by common fragments of thin-shelled bivalves as well as rare crinoid and gastropod remains. The composition of the collected inclusion is different from that of the host rock. There are many candidates that could have produced the regurgitalite, including durophagous sharks, marine reptiles, the actinopterygian Colobodus, or nautiloids. Our finding adds to the emerging evidence of durophagous predation in the Triassic sea of Polish part of the Germanic Basin. It is the second record of a regurgitalite from the Muschelkalk of Upper Silesia.


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How to Cite

Niedźwiedzki, R., Surmik, D., Chećko, A., & Salamon, M. A. (2021). A regurgitalite of the Middle Triassic (Muschelkalk) from Upper Silesia (Poland). Geology, Geophysics and Environment, 47(1), 33–40. https://doi.org/10.7494/geol.2021.47.1.33




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