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Turritellenplatte : ウィキペディア英語版 | Turritellenplatte The Turritellenplatte of Ermingen ("Erminger Turritellenplatte" near Ulm, Germany)〔Johannes Baier: ''Die Geologie des Ulmer Raums'' - Documenta Naturae, 173, 1-44; München, 2009. ISBN 978-3-86544-173-7〕 is a type of very rich, fossil-bearing rock which is of particular interest to geologists and paleontologists. It occurs in a very restricted outcrop and is protected in its entirety as a natural monument. This outcrop of these marine sedimentary rocks is situated in the northern part of the North Alpine Foreland Basin (NAFB) and it is famous for a superabundance of shells of the sea snail ''Turritella turris'', a marine gastropod mollusk in the family Turritellidae. 〔Johannes Baier: ''Über die Tertiärbildungen im Ulmer Raum'' - Documenta Naturae, 168, 1-32; München, 2008. ISBN 978-3-86544-168-3 〕 The fauna of this gastropod-rich sandstone reflects mainly near-coastal and shallow marine conditions.〔 Johannes Baier, Karl-Heinz Schmitt & Rudi Mick: ''Notizen zur untermiozänen Hai- und Rochenfauna der Erminger Turritellenplatte (Mittlere Schwäbische Alb, SW-Deutschland).'' - Jahresbericht Mitt. oberrhein. geol. Ver., N.F. 86, 361-371; Stuttgart, 2004 ((Abstract )) 〕 Petrographical and palaeontological data allow a correlation of the ''Turritellenplatte'' of Ermingen with Burdigalian (Lower Miocene). The Sr-isotope composition of shark teeth in the deposit suggests an age of about 18.5 million years for the ''Turritellenplatte'' of Ermingen.〔 Johannes Baier: ''Ein Beitrag zur Erminger Turritellenplatte (Mittlere Schwäbische Alb, SW-Deutschland).'' - Jahresbericht Mitt. oberrhein. geol. Ver., N.F. 90, 9-17; Stuttgart, 2008. ((Abstract ))〕 == References == 〔
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