Pliensbachian
/pliːnzˈbɑːkɪən/Geology
noun
A stage of the Lower Jurassic in Europe lying above the Sinemurian and below the Toarcian; the geological age during which this was deposited, from about 192 to 184 million years ago.
adjective
Of or relating to the Pliensbachian.
Origin
Early 20th century; earliest use found in Quarterly Journal of the Geological Society of London. From Pliensbach, the name of a locality near Boll, a village near Göppingen in Baden-Württemberg, Germany + -ian, after German Pliensbachien.