Case in point: Puertasaurus.
Often cited as being the largest known sauropod because it appears to basically tie Argentinosaurus in length and height but has wider back vertebrae (so presumably a more rotund torso), the chart above shows how tenuous our knowledge or Puertasaurus is.
Alamosaurus, on the other hand, is known from quite a few specimens. None of them are complete, so there is some debate over the proportions, but I feel reasonably good in the composite I've come up with. The very large specimen on display in Dallas, and a fragmentary specimen described by Fowler & Sullivan (2010) both point to a large animal (shown in gray) that is in the giant titanosaur size range, but falls short of Argentinosaurus/Puertasaurus size.
Enter a fragmentary tibia from Mexico described by Guzman-Gutierrez & Palomino-Sanchez (2006). It was tentatively referred to Alamosaurus, but it's titanic, suggesting that a North American titanosaur approached or even equalled Puertasaurus in size.
All of this is fascinating, but sadly the options are somewhat limited when comparing four vertebrae to a broken tibia.
P.S. Eventually Argentinosaurus will be added to this image. I'll be sure to send out an edit notice when it does. Props must go to ~Stuchlik for urging me to reconsider the Guzman-Gutierrez & Palomino-Sanchez specimen.
Now, if we want to rebuild old books, we should account a length of 20 or 30 matters as a juvenile sauropod...adults are really giant, even for dangerous carnivores.
in old books, artists drew a T.rex beside Apatosaurus or a T.rex prey Diplodocus....oh my God,such imagine account as a wrong imagination for more than 20 years but Now, we know sauropods larger than Apatosaurus exist in life of T.rex. However, T.rex prey just Triceratops and hadrosaurs because teeth and jaw of T.rex just was good for broke bones and not cut giant flesh
The hip height was 4.586 times the foot length which is different from here. Is this paper accurate?
Anyway I love the comparison. Gives a great feel for the size!
I'm form Poland and my english is bad, but in this forum I try estimate Amphocielias fragillimus size.
For example Limayasaurus was ~17 m long (85% complete skeleton) abut dorsal have close to 120 cm long!.
Mamenchisaurus sinocanadorum 35 m ???? huge !!!.
Hudiesaurus sinojapanorum was very big.
Not officialy name Morrocan sauropod ~femur 236 cm.