Dzik, J. & Sulej, T. 2007. A review of the early Late Triassic Krasiejów biota from Silesia, Poland. Palaeontologia Polonica 64, 3-27.

Mass accumulations of vertebrate fossils in the tetrapod “graveyard” at Krasiejów near Opole, SW Poland, occur in a vast lacustrine marly claystone horizon and claystone lenses of various extent within fluviatile cross-laminated mudstone. These fossil assemblages do not differ from each other in taxonomic composition, but the proportions of aquatic to land animals are dramatically different. We attempted to separate these two components of the assemblages to restore the original composition of the biota. The lacustrine biocoenosis component of Krasiejów includes characean algae, various molluscs and arthropods, ganoid and dipnoan fishes, tanystropheid prolacertilians, the phytosaur Paleorhinus, and the most common vertebrate is the temnospondyl amphibian Metoposaurus. The capitosaurid labyrinthodont Cyclotosaurus probably occupied the lake shore. The inland vertebrate community was dominated by the herbivorous aetosaur Stagonolepis and the small dinosaur Silesaurus, which probably were the prey for the rauisuchian Teratosaurus. The geological age of the Krasiejów strata can be determined, although with a rather low resolution, based on position of various members of its fauna in their evolutionary lineages. Biostratigraphic and sequence stratigraphy evidence may improve the precision of this dating to correspond with the upper part of the Weser Formation in Germany, believed to be of Late Carnian age.