D. Mader - Taphonomy, Sedimentology and Genesis of Plant Fossil Deposit Types in Lettenkohle (Lower Keuper) and Schilfsandstein (Middle Keuper) in Lower Franconia (Germany) Authors Jacek Robert Kasiński Abstract , Issue Vol. 44 No. 3 (1996) Section Geochemia, mineralogia, petrologia