Ankylosaurus by Fernando Gilgado Gomez

Diagrams in Create and Play with Origami Dinosaurs 3 by Fernando Gilgado Gomez
Diagrams in Dinosaur Origami by Fernando Gilgado Gomez
Diagrams in Dinosaurios de Papel by Fernando Gilgado Gomez
Folded from a square of origami paper

Ankylosaurus by Fumiaki Kawahata

Diagrams in Dinosaurs and Paleontology in Origami by Fumiaki Kawahata
Diagrams in Origami Dinosaurs 3 by Fumiaki Kawahata
Folded from 2 squares of Vietnamese wrapping-paper

Lambeosaurus by Yamada Katsuhisa

Diagrams in Origami Dinosaurs by Yamada Katsuhisa
Folded from a square of scrapbooking paper

Maiasaura - baby by Kimura Yoshihisa

Diagrams in NOA Magazine 219
Diagrams in Origami Tanteidan Magazine 12
Folded from a square of animal-pattern origami paper

Parasaurolophus by Donya Quick

Folded from a square of "Slab" scrapbooking paper

Parasaurolophus by Fumiaki Kawahata

Diagrams in BOS Convention 2003 Autumn
Diagrams in Origami Dinosaurs Premium by Makoto Yamaguchi
Diagrams in Origami Fantasy by Fumiaki Kawahata
Diagrams in Quarterly ORU Folding Diagrams - Vol. 2
Folded from a square of O-Gami paper

Parasaurolophus by John Montroll

Diagrams in Dinosaur Origami by John Montroll
Wet-folded from a square of art paper

Styracosaurus by John Montroll

Diagrams in Dinosaur Origami by John Montroll
Folded from a square of art paper

Styracosaurus by Nick Robinson

Diagrams in AEP convention 2009
Diagrams in CDO convention 2006
Diagrams in Nick Robinson's Beginning Origami Kit by Nick Robinson
Diagrams in Origami Adventures: Dinosaurs by Nick Robinson
Diagrams in Origami USA Convention 2020
Folded from a square of art paper