Comparison of big theropod

Several giant length estimates have been proposed for different taxa, with varying degrees of accuracy. This diagram uses more rigorous estimates to avoid inaccuracy Sizes based on:

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"

Giganotosaurus     : Hartman, S. (2013). "Mass estimates: North vs South redux" Scott Hartman's Skeletal Drawing.com. Retrieved April 29, 2019.

Tyrannosaurus     : "A T. rex Named Sue" (PDF) Retrieved April 29, 2019

Mapusaurus     : the Theropod Database by Mickey Mortimer

Carcharodonotsaurus     : Sereno, P. C.; Dutheil, D. B.; Iarochene, M.; Larsson, H. C. E.; Lyon, G. H.; Magwene, P. M.; Sidor, C. A.; Varricchio, D. J.; Wilson, J. A. (1996). "Predatory Dinosaurs from the Sahara and Late Cretaceous Faunal Differentiation". Science. 272 (5264): 986–991. doi:https://science.sciencemag.org/content/272/5264/986

Credits to:

Franoys (https://www.deviantart.com/franoys)

Slate Weasel (https://en.wiki.x.io/wiki/User:Slate_Weasel)

Scott A. Hartman - https://peerj.com/articles/6432/ (http://www.skeletaldrawing.com/)