Answer:
The Eocene Epoche coincides with the form of primates which are placental mammals.
Step-by-step explanation:
The main characters of placental mammals contain large body,bigger brain that appear at that time from the fossil record.
True primates were evolve in 55 million years ago,at the beginning of eocene epoch.
These fossil records were found in North America, Europe, Asia.
The fossil were squirrel like size with grasping hand,feet, that helps them for climbling the tree.
The fossil record of primate that were found contain stereoscopic vision.