The Order of Life: 144 images showing the progression and systematization of life, 1849

Ptak Science Books:

This fine and minutely-detailed work packs an incredible amount of data on a sheet of paper just 8x10 inches big (or small), 145 (don’t forget Eve in the 12-square grid!) elegantly arranged and easily identified images in 80 square inches.

It's really 140 images, but I won't split hairs.