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I think there may be a problem with the size comparison between Sonorasaurus and Brachiosaurus at the end of the first paragraph. It claims that Sonorosaurus was "about one third" of the size of Brachiosaurus, but based on the sizes listed on their respective Wikipedia pages, Brachiosaurus was only one and three-quarter times the length and one and a half times the height, of Sonorasaurus. Even given the statement on the Brachiosaurus page that this animal could have grown to be 15% larger than the size listed, Brachiosaurus still wouldn't be even twice as large as Sonorasaurus, much less even roughly three times its size. I think the statement needs a reference, at the very least. 70.210.251.211 ( talk) 06:54, 14 June 2008 (UTC) reply

By "size" I think it's meant volume.-- Draco ignoramus sophomoricus ( talk) 20:52, 28 March 2010 (UTC) reply

Upchurch et. al. (2004) tabulate Sonorasaurus as a nomen dubium, but without justification. However, wouldn't you bother placing Sonorasaurus as Titanosauriformes incertae sedis until it is included in a cladistic analysis of Macronaria?

Upchurch, P., Barrett, P.M. and Dodson, P. 2004. Sauropoda. In: The Dinosauria, 2nd edition. D. Weishampel, P. Dodson, and H. Osmólska (eds.). University of California Press, Berkeley. Pp. 259–322 68.4.61.168 ( talk) 15:27, 26 February 2012 (UTC)Vahe Demirjian reply