MICROANATOMY

Detailed explanation-1: -He was the first to demonstrate that the different strata of rock in the Paris basin each had its own mammal fauna. Furthermore, he showed that the lower a stratum was, the more different its fossil animals were from species living in the present.

Detailed explanation-2: -In the first half of the 19th century, the French naturalist Georges Cuvier developed his theory of catastrophes. Accordingly, fossils show that animal and plant species are destroyed time and again by deluges and other natural cataclysms, and that new species evolve only after that.

Detailed explanation-3: -Cuvier carefully studied elephant fossils found near Paris. He discovered that their bones were indisputably distinct from those of living elephants in Africa and India. They were distinct even from fossil elephants in Siberia.

Detailed explanation-4: -Georges Cuvier, in full Georges-Léopold-Chrétien-Frédéric-Dagobert, Baron Cuvier, (born August 23, 1769, Montbéliard [now in France]-died May 13, 1832, Paris, France), French zoologist and statesman, who established the sciences of comparative anatomy and paleontology.