French lensmaker Essilor International SA agreed to buy Luxottica Group SpA, the maker of Ray-Ban sunglasses, for about 22.8 billion euros ($24 billion) in stock, combining the largest manufacturer and retailer in eyewear and creating an e-commerce contacts and eyewear powerhouse.
The Permian Period was the final period of the Paleozoic Era. Lasting from 299 million to 251 million years ago, it followed the Carboniferous Period and preceded the Triassic Period. By the early Permian, the two great continents of the Paleozoic, Gondwana and Euramerica, had collided to form the supercontinent Pangaea.
The Great Dying. The Permian Period ended with the greatest mass extinction event in Earthâs history. In a blink of Geologic Time â in as little as 100,000 years â the majority of living species on the planet were wiped out of existence.he Great Dying. The Permian Period ended with the greatest mass extinction event in Earthâs history. In a blink of Geologic Time â in as little as 100,000 years â the majority of living species on the planet were wiped out of existence.