 Nyorai kupfuurira kweiyi ndima - Mamwe masayendisiti akadai saGeorges Cuvier 17691832 akaisa mberi pfungwa dzemazera akapfuura, uye masayendisiti akadai saAdam Sedgwick 17851873 akabatanidza pfungwa dzaWerner mumashoko ecatastrophism; Sedgwick akafuridzira mudzidzi wake wepayunivhesiti Charles Darwin kuti adane Sedgewick sic ruoko rwakakura zvakadini pakudhonza macheki makuru paBhangi reNguva!. Mune imwe rondedzero inokwikwidza, Charles Lyell mubhuku rake rinonzi Principles of Geology 18301833 akavandudza nzwisiso yaHutton yenguva yakadzika isingaperi sechinhu chinokosha chesayenzi muuniformitarianism. Somunhu wechiduku anoongorora zvinhu zvakasikwa uye anotaura nezvezvinhu zvepasi, Darwin akadzidza mabhuku akatevedzana aLyell zvakadzama mukati merwendo rwekunzvera rweBeaglemuma1830, asati atanga kufunga nezvekushanduka-shanduka. 