In an attempt to explain extinction, Cuvier proposed the idea of "revolutions" or catastrophism in which he speculated that geological catastrophes had occurred throughout the Earth’s history, wiping out large numbers of species.
Untuk menjelaskan fenomena kepunahan ini, Cuvier mengajukan gagasan "revolusi" atau katastrofisme yang ia spekulasikan bahwa bencana geologi telah terjadi selama sejarah Bumi dan memusnahkan sejumlah besar spesies.