galswintha:Former Triassic limestones quarry in Sadowa Góra (Orchard Mountain) in Jaworzno, Upper Si
galswintha:Former Triassic limestones quarry in Sadowa Góra (Orchard Mountain) in Jaworzno, Upper Silesia. Poland. They originated in shallow epicontinental sea and are rich in marine fossils like brachiopods, bivalves and crinoids. Bones of some aquatic reptiles were also found here like placodont rib and various fragments of nothosaurs skeletons. The second photo shows mega-ripple marks which occur at the bottom of the quarry. Such structures, many times wider than typical ripple marks, serve as surviving evidence of triassic powerful tropical tornados or maybe even tsunami waves, disturbing what was then the bottom of the sea. Reconstructions of Triassic fauna include the dinosauriform Silesaurus, temnospondyl amphibian Plagiosaurus and sauropterygian Nothosaurus. -- source link
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