Alexander von Humboldt (*1769, + 1859) recognized the mainly limestone dominated mountain range of the Swiss Jura Mountains as a separate formation that was not at the time included in the established stratigraphic system defined by Abraham Gottlob Werner (* 1749, + 1817) and named it "Jurakalk" in 1795.. 
Nneka Lucía Egbunna, a bíi ní ọjọ́ Kẹrìnlélógún, Ọdún 1980.. 