16 page timeline based on the geologic timescale. Covering 4,500 Ma to Present.
Each two-page spread represents an era or period. Timeline is divided into ten sections with a time measurement scale for each spread.
Great for a accordion book, classroom display, or book of centuries. Printing instructions included. 2 page spreads, print separately or back to back for a notebook or binder.
This timeline is also included in our Timeline and Book of Centuries bundle which includes Early Human History, Ancient Times, Middle Ages, and Modern Times.