Fumiaki Kawahata presents a total of 31 models in this book: dinosaurs and other living beings from past geological ages.
The models vary in their degree of difficulty from medium (the trilobite can almost be described as simple) to complex. Seven models are folded from 15x15cm paper, 15 models from 24x24cm and 8 models from 35x35cm. Most models consist of a piece of paper, the skull of the Tyrannosaurus and the much admired skeleton of the Brachiosaurus are made up of several parts.
Difficulty level: medium to complex