The Collaborative International Dictionary
Keuper \Keu"per\ (koi"p[~e]r), n. [G.] (Geol.) The upper division of the European Triassic. See Chart of Geology.
Wikipedia
The Keuper is a lithostratigraphic unit (a sequence of rock strata) in the subsurface of large parts of west and central Europe. The Keuper consists of dolostone, shales or claystones and evaporites that were deposited during the Middle and Late Triassic epochs (about ). The Keuper lies on top of the Muschelkalk and under the predominantly Lower Jurassic Lias or other Early Jurassic strata.
The Keuper together with the Muschelkalk and the Buntsandstein, all 3, form the Germanic Trias Group, a characteristic sequence of rock strata that gave the Triassic its name.
"Muschelkalk (geology)", Britannica Online Encyclopedia,
October 2010, webpage:
EB-39.
Usage examples of "keuper".
Upper Keuper from Germany, which spans the Late Triassic, we can observe the similarities and differences that were already becoming apparent in dinosaur evolution.
The Upper Keuper rocks are located in Central Europe, and are part of a thick sequence of Triassic strata.
More dinosaurs have been found in the Upper Keuper strata than in the Chinle Formation.
There are many similarities between the Chinle and Upper Keuper communities.
The most conspicuous difference between the two formations is that while prosauropods are very common in the Upper Keuper, they are absent in the Chinle.
August sun cast the short shadows of midday as Audacia entered the modest rose-red Keuper stone house.
A deposit of these rocks lies in the Vale of Clwyd and probably flanks the eastern side of the Pennine Hills, although here it is not so readily differentiated from the Keuper beds.