The story of terms used in Keuper stratigraphy. IV: Schilfsandstein

摘要

The term "Schilfsandstem" (reed sandstone) was invented in 1827 by Georg Friedrich Jager for the fossiliferrous ashlar sandstone of Stuttgart (now "Stuttgart Formation"). He coined this term with reference to the Most ubiquitous Plant fossil of this sandstone, which he mistook as an extinct kind of reed ("Calamiles arenaceus"). Only a few years later, Heinrich Georg Bronn recognized the reed-like fossils to be shoots of a giant horsetail; today their correct name is Equisetites arenaceus (Jager) Schenk. For some years, the new name "Schilfsandstein" was met with reservation by other geologists.yet, a few decades later, it gained overall acceptance. Today, the lateral equivalents of this formation are called "reed sandstone- even in neighbourring France ("gres roseaux") and Poland ("piaskowiec trzcinowy").