I’m skeptical of 12 foot humans, simply because we know humans that reach 8 foot have tremendous problems with their backs.
I’m just not sure that the way we’re designed (especially our spines) could support another 4 feet in length), given that we can barely support 8 feet in length.
I read this Trib article myself in 1980`s and went to the UC Berkeley Anthroplogy Bldg. basement to which everyone is barred and confirmed with Assoc. Prof. that indeed there are 12 ft skeletons there.
Other ref`s to this are in anthroplogy journals of that time..