Anyway, can you briefly enumerate a bit about "the most
adaptations for rearing of all sauropods"?
Jeffrey A. Wilson & Matthew T. Carrano: Titanosaurs and the origin of
"wide-gauge" trackways: a biomechanical and systematic perspective on
sauropod locomotion, Paleobiology 25(2), 252 -- 267 (1999)
Paleobiology doesn't quite have the impact factor it deserves. :-)