A scientist would categorize the Eocene period within the Cenozoic Era.
To determine which era the Eocene period belongs to on the geological time scale, a scientist would place it in the Cenozoic Era. The Eocene period falls within the Cenozoic Era, specifically within the Paleogene Epoch which lasted from about 56 to 33.9 million years ago (MYA).
https://brainly.com/question/22399337