The new exposure of the Upper Muschelkalk clays and dolomites located south Kalety (Tarnogórski District, Silesia, Poland) provided numerous remains vertebrates represented by teeth, scales, long bones, coprolites. Despite influence hydrothermal processes leading to dolomitization Zn-Pb deposit formation, preservation fossil is good. taxonomic diversity accumulation vertebrate debris in dolomit...

Fossil biomolecules from an endogenous source were previously identified in Cretaceous to Pleistocene fossilized bones, the evidence coming from molecular analyses. These findings, however, were called into question and an alternative hypothesis of the invasion of the bone by bacterial biofilm was proposed. Herewith we report a new finding of morphologically preserved blood-vessel-like structur...

An ophiuroid assemblage from Rhaetian dark shales in a subrosion pipe (or sinkhole) penetrating middle Triassic (Muschelkalk) strata, and, outside the subrosion pipe, disconcordantly overlying middle Triassic strata, east of Winterswijk, the Netherlands, is described, discussed and assessed taxonomically. The material consists of nearly intact and articulated as well as wholly disintegrated ske...

Fossil lobsters from the Netherlands have been described only rarely. This article describes the oldest, marine lobsters from the Netherlands in Middle Triassic Anisian (Muschelkalk) sediments cropping out in the Winterswijk quarry complex. The lobsters include the erymids Clytiopsis argentoratensis and Oosterinkia neerlandica n. gen., n. sp., and the mecochirid Pseudoglyphea cf. P. spinosa. Th...

Non-destructive imaging techniques can be extremely useful tools for the investigation and the assessment of palaeontological objects, as mechanical preparation of rare and valuable fossils is precluded in most cases. However, palaeontologists are often faced with the problem of choosing a method among a wide range of available techniques. In this case study, we employ x-ray computed tomography...