The reptiles had taken over the city. Once again they were the dominant form of life. Looking up at the ancient impassive faces, Kerans could understand the curious fear they roused, rekindling archaic memories of the terrifying jungles of the Paleocene, when the reptiles had gone down before the emergent mammals, and sense the implacable hatred one zoological class feels towards another that usurps it.

The Drowned World and the Wind From Nowhere (ed. 1965)