Dinosaur footprints from the Thaiat ridge and their palaeoenvironmental background, Jaisalmer Basin, Rajastan, India

• Autorzy: Pieńkowski G. , Brański P. , Pandey D. K. , Schlögl J. , Alberti M. , Fürsich F. T.

Identyfikatory

DOI

10.5604/17313708 .1148553

• Języki publikacji: EN

Abstrakty

EN

Two dinosaur footprints: Eubrontes cf. giganteus and Grallator tenuis, both attributed to theropods, have been found in the Lower Jurassic Thaiat Member of the Lathi Formation at the Thaiat ridge, near Jaisalmer in western Rajasthan, India. The footprints were left in sediments of a tidal origin, located in profile a few meters above a marked transgressive/flooding surface. They show different states of preservation – the smaller Grallator tenuis represents a well-preserved concave epirelief footprint on the upper surface of a sandstone containing nerineid gastropod shells, while the bigger Eubrontes cf. giganteus footprint shows a rare state of preservation as a positive epirelief on the top of a calcareous sandstone bed, where recent erosion exposed the footprint cast by removing the mud above and around the footprint. The Thaiat ridge section has been amended in its lower part, to indicate the marked transgressive surface. Geochemical analyses and calculated weathering indices (such as CIA) show that the hinterland climate was seasonal to semi-arid during deposition of that part of the succession.

Słowa kluczowe

EN

dinosaur footprints; palaeoclimate; palaeoenvironment; Jaisalmer; India; Jurassic

PL

ślady dinozaurów; paleoklimat; paleośrodowisko; Jaisalmer; Indie; jura

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Volumina Jurassica
• Rocznik: 2015
• Tom: Vol. 13, no. 1
• Strony: 17--26
• Opis fizyczny: Bibliogr. 23 poz., tab., rys.

Twórcy

autor

Pieńkowski G.

• Polish Geological Institute – National Research Institute, 00-975 Warszawa, Rakowiecka 4, Poland

autor

Brański P.

• Polish Geological Institute – National Research Institute, 00-975 Warszawa, Rakowiecka 4, Poland

autor

Pandey D. K.

• Department of Geology, University of Rajasthan, Jaipur, 302004, India

autor

Schlögl J.

• Department of Geology and Paleontology, Faculty of Natural Sciences, Comenius University, Mlynská dolina – G, SK-842 15 Bratislava, Slovakia

autor

Alberti M.

• Institut für Geowissenschaften, Christian-Albrechts-Universität zu Kiel, Ludewig-Meyn-Straße 10, 24118 Kiel, Germany

autor

Fürsich F. T.

• GeoZentrum Nordbayern, FG Paläoumwelt, Friedrich-Alexander-Universität Erlangen-Nürnberg, Loewenichstrasse 28, 91054 Erlangen, Germany

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