It's hard with Bruhathkayosaurus, since the fossil material was destroyed and it might be a tree.

Argentinosaurus is the heaviest (~32 meters and 80 metric tons), but Barosaurus is the longest (45 meters and 60 metric tons)

Literally nothing else but argentinosaurus

Weird, since I found this list on Wikipedia.

Also BYU 9024 does not belong to baro anymore (it is supersaurus now and it weighs less than argentino) BYU 3GR could be baro but i'm not sure, either way it still isn't as large as BYU 9024 when it was assigned to baro

Patago was oversized in its initial description

Bruhath: NO (remains are too shit and trying to figure out exactly what kind of titanosaur it is, is basically impossible since the remains are destroyed now)

Maraa is less dubious than bruhath (since it was documented by cope, who was a fairly reliable paleontologist at the time, so it probably did exist and was as big as cope described it, also dorsal scaling is more accurate than limb scaling so hey whatever) not sure about the exact mass but i think it was like ~ 70 - 80 tonnes, pretty heavy but argent still clocks over at ~ 90 tonnes

Makes sense.

Argent but misclick