Abstract In this study, we combined the geochemical characteristics based on Rock-Eval pyrolysis and gas chromatography – mass spectrometry (GC–MS) results with facies analysis. These surveys were conducted within grey to black claystones/mudstones intervals of Podil’tsi Kokhanivka formations, related Pliensbachian Toarcian–Bathonian ages, respectively. The revealed that Formation contains mixe...

The Bathonian Ore-Bearing Clay Formation, outcropping in the Gnaszyn open-pit mine at Częstochowa (Poland), includes several horizons of abundant iron carbonate concretions . cores concretionary bodies commonly contain organic matter (OM), dominated by fragments wood. These particles usually display well-preserved primary structures and occur rarely as more deformed and/or completely degraded f...

Current research suggests that the initial radiation of maniraptoran theropods occurred in Middle Jurassic, although their fossil record is known almost exclusively from Cretaceous. However, fossils Jurassic maniraptorans are scarce, usually consisting solely isolated teeth, and identifications often disputed. Here, we apply different machine learning models, conjunction with morphological comp...

Abstract Docodonta are one of the earliest diverging groups mammaliaforms, and their morphology provides key information on transition between non-mammalian cynodonts Mammalia. We describe partial skulls two docodontans Borealestes serendipitus cuillinensis sp. nov. from Kilmaluag Formation (Middle Jurassic: Bathonian), Isle Skye, Scotland. visualize cranial anatomy using laboratory synchrotron...

Abstract Recent discovery of a previously unknown outcrop in the vicinity Zengővárkony lime-kilns (Mecsek Mountains, Hungary) provided few identifiable upper Oxfordian brachiopods that exhibit truly Mediterranean (Tethyan) character. Dating is based on rich ammonite fauna: Benetticeras benettii; Trimarginites ex gr. trimarginatus; Orthosphinctes (Orthosphinctes) tiziani clearly indicate Late Ox...