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

Abstract

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.

Study on restoring abandoned mine lands to economically usable state using the post‐occupancy evaluation method

“…The conducted research confirmed the purposefulness of the revitalization of post‐mining objects in the city of Jaworzno, most often recommending combining many functions, while the protection and access to geological objects revealed during operation and the use of post‐mining objects for recreation and sports has been recommended as the leading direction of transformation (a total of 95.4%). It was found that customer opinions in the form of direct interviews and the results of scientific research carried out in the Sadowa Góra quarry in Jaworzno in the field of geology (Niedźwiedzki et al, 2021; Surmik et al, 2014, 2020) may be an effective object management tool. This is evidenced by the high ratings given by the respondents and the steady increase in the number of visitors.…”

“…Sadowa Góra (Figure 1) quarry is an rea of a lower rank but can be seen as a good example of a space effectively used for public benefit, combining all the most important features of non‐reclaimed post‐mining sites, landscape and educational: fossil remains of vertebrates, echinoderms, brachiopods, etc. (Niedźwiedzki et al, 2021; Surmik et al, 2014, 2020). The quarry is a highly valued tourist attraction because of its scenic qualities, as well as its technical infrastructure elements representing historical value and development elements defining the quality of conditions for use of the facility by end‐users.…”

“…The area of analysis in the main phase of the research was the Sadowa G ora Middle Triassic Limestone quarry (50 13 0 38 00 N 19 16 0 27 00 E), located in southern Poland, in the Silesian Voivodeship, in the town of Jaworzno (Figure 1). The history of mining in this region dates back to the 13th century (Cabała & Sutkowska, 2006;Niedźwiedzki et al, 2021;Ślusarczyk, 2018). The site is a closed limestone quarry, which in the past was the raw material base for the Szczakowa cement plant operating from the end of the 19th to the mid-20th century.…”

“…Sadowa G ora (Figure 1) quarry is an rea of a lower rank but can be seen as a good example of a space effectively used for public benefit, combining all the most important features of non-reclaimed postmining sites, landscape and educational: fossil remains of vertebrates, echinoderms, brachiopods, etc. (Niedźwiedzki et al, 2021;Surmik et al, 2014Surmik et al, , 2020. The quarry is a highly valued tourist attraction because of its scenic qualities, as well as its technical infrastructure and landscape, forms of use, and the influence of these objects on end-users (including the access to communication networks), elements increasing the ease of use of the site, and infrastructure related to education and promotion of Earth sciences were all subjected to quantitative analysis.…”

Tough to digest: first record of Teleosauroidea (Thalattosuchia) in a regurgitalite from the Upper Jurassic of north‐eastern Italy

“…2021; Niedźwiedzki et al . 2021). However, until recently, the absence of a univocal terminology (e.g.…”