GEOLOGY

Detailed explanation-1: -The first primates, ancestors of monkeys, apes, and humans, appeared by the mid-Paleocene Epoch. It is also during this epoch that South America became isolated from North America and Antarctica.

Detailed explanation-2: -The era that Homo sapiens first appeared was during the Cenozoic era, Quaternary period, near the end of the Pleistocene epoch of the present age or between 300, 000 and 200, 000 years ago. Homo sapiens are a very recently evolved species compared to the other inhabitants of this planet.

Detailed explanation-3: -Afterward, mammals came to dominate the Earth, which is why the Cenozoic Era is known as the Age of Mammals. The evolution of plants during this era resulted in the development of angiosperms, or flowering plants.

Detailed explanation-4: -The Cenozoic Era is the most recent of the three major subdivisions of animal history. The other two are the Mesozoic and Paleozoic Eras. The Cenozoic spans only about 65 million years, from the end of the Cretaceous Period and the extinction of non-avian dinosaurs to the present.

Detailed explanation-5: -Life during the Cenozoic Era Later in this period, rodents and small horses, such as Hyracotherium, are common and rhinoceroses and elephants appear. As the period ends, dogs, cats and pigs become commonplace. Other than a few birds that were classified as dinosaurs, most notable the Titanis, the dinosaurs were gone.