folded from 40 23 cm squares of white elephant hide.
The Tyrannosaurus Rex Skeleton and the Triceratops Skeleton are masterpieces of multi-piece origami, each requiring about 20 pieces of paper.
I used steel wire to stabilize the models and make them stand, instead of the assembly method suggested by Yoshino himself.
Triceratops Skeleton:
diagrams from
Fumiaki Kawahata:
Issei Super Complex Origami.
Tokyo: Gallery Origami House, 1996
Tyrannosaurus Rex Skeleton:
diagrams from
Issei Yoshino:
Origami Skeleton of Tyrannosaurus Rex.
Toronto: Origami Maple, second edition 1993.