Revise the previous image with emphasis on the text. Enlarge the animal labels and geological era names for increased readability and impact, ensuring they stand out against the illustrations and background.

Illustrate a cutout image chart representing various geological eras such as the Jurassic, Triassic, and Cretaceous. Include distinct, iconic animals from each era like dinosaurs, mastodons, and sabre-toothed tigers, with labels naming each animal.

Design a book cover titled 'Geologic Time Scale'. Incorporate elements of geology like strata, fossils, and colourful sediment layers. The title should be prominent and legible, capturing the essence of geological eras.

A detailed visualization of the geologic time scale, with distinct layers representing different time periods such as Precambrian, Paleozoic, Mesozoic, and Cenozoic. Each layer is color-coded with labels indicating significant geologic events.