English: Scale diagram comparing a human and the largest-known dinosaurs of five major clades

Sizes based on:

Supersaurus : Lovelace, David M.; Hartman, Scott A.; Wahl, William R. (2007). "Morphology of a specimen of Supersaurus (Dinosauria, Sauropoda) from the Morrison Formation of Wyoming, and a re-evaluation of diplodocid phylogeny" Arquivos do Museu Nacional. 65 (4): 527–544.Curtice, Brian (2021). "New Dry Mesa Dinosaur Quarry Supersaurus vivianae (Jensen 1985) axial elements provide additional insight into its phylogenetic relationships and size, suggesting an animal that exceeded 39 meters in length" (PDF).

w:Spinosaurus :Ibrahim, Nizar; Sereno, Paul C.; Dal Sasso, Cristiano; Maganuco, Simone; Fabri, Matteo; Martill, David M.; Zouhri, Samir; Myhrvold, Nathan; Lurino, Dawid A. (2014). "Semiaquatic adaptations in a giant predatory dinosaur". Science. 345 (6204): 1613–6 "Semiaquatic adaptations in a giant predatory dinosaur"

Shantungosaurus : Zhao, X.; Li, D.; Han, G.; Hao, H.; Liu, F.; Li, L.; Fang, X. (2007). "Zhuchengosaurus maximus from Shandong Province". Acta Geoscientia Sinica

Triceratops :Paul, G. S. (2010). The Princeton Field Guide to Dinosaurs.

Stegosaurus :Holtz, Thomas R. Jr. (2012) Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages,Winter 2011 Appendix

Credits to:

Scott A. Hartman - (http://www.skeletaldrawing.com/)

randomdinos - https://www.deviantart.com/randomdinos

Hai Xing, Jordan C. Mallon, Margaret L. Currie Fig. 2 (doi:10.1371/journal.pone.0175253.g002) in: Supplementary cranial description of the types of Edmontosaurus regalis (Ornithischia: Hadrosauridae), with comments on the phylogenetics and biogeography of Hadrosaurinae. PLoS ONE 12(4):e0175253, doi:10.1371/journal.pone.0175253

Franoys (https://www.deviantart.com/franoys/art/Spinosaurus-aegyptiacus-skeletal-FSAC-kk-11888--706404751)

Slate Weasel (https://commons.wikimedia.org/wiki/User:Slate_Weasel)

GetAwayTrike (https://www.deviantart.com/getawaytrike)

Human silhouette from File:Silhouette of man standing and facing forward.svg.