During which epoch did the first prosimians appear?

The correct identification of the epoch during which the first prosimians appeared is the Paleocene-Eocene epoch. This period, which spans approximately from 66 million to 34 million years ago, is significant in primate evolution. The Paleocene saw the emergence of the earliest primates, known as plesiadapiforms, which were small, tree-dwelling creatures. However, it was during the Eocene, a subsequent stage in this epoch, that true prosimians began to evolve and diversify prominently.

Prosimians, which include lemurs, lorises, and tarsiers, are characterized by their anatomical features and behaviors that distinguish them from later primates, known as simians. The environmental conditions during the Paleocene-Eocene epoch, such as the warm climate, facilitated the adaptive radiation of these early primate groups.

In contrast, the Pleistocene epoch is much later and is known for the evolution of modern humans and other mammals. The Oligocene epoch follows the Eocene and is significant for the development of new types of primates, including some of the first monkeys. The Miocene epoch is known for the diversification of apes and the early evolutionary history of hominins. Understanding the timeline and