keupern.
/ˈkɔɪpə/ Geology.
The name given in Germany, and thence by English geologists, to the upper member of the Triassic system, consisting in Germany of marls, shales, sandstones, gypsum, and clays, in England chiefly of marls and sandstones.
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the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > secondary or Mesozoic > Triassic > specific
red marl1625
Muschelkalk1824
poecilite1832
keuper1844
bunter1874
Karoo beds1876
1844 D. T. Ansted Geol. I. xix. 295 The Keuper, the uppermost division of the Triassic system, is called by the French marnes irisées.
1858 W. Whewell Novum Organon Renov. (ed. 3) iv. ix. 288 The term Pœcilite [was] proposed by Mr. Conybeare to designate the group of strata which lies below the oolites and lias, including the new red or variegated sandstone, with the keuper above, and the magnesian limestone below it.
1863 C. Lyell Geol. Evid. Antiq. Man xvi. 332 It is mottled with red and green, like the New Red Sandstone or keuper.
This entry has not yet been fully updated (first published 1901; most recently modified version published online June 2018).
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