Real ark players kill titanosaurs for these.

Knock out a bronto and rip its spine out

The easiest way to get this is to kill a diplo.

You could literally make a hibrid/ zombie Dino in ark. First the sauropod vertebrae, then the allosaurus brain, to protect the brain the wonderful Rex skull*, the giga heart, yuttranus or whatever you call it lungs, gasbags bladder, T. Rex arms, therozino claws, raw meat, hide, pelt, basilo blubber and to cover it up shell fragments.

*megolodon teeth for the skull

Used as a tribute to a boss fight.

If it's sauropod vertebra, then why doesn't the amargasaurus drop this?

Dreadnoughtus also drop sauropod vertebra

Knock it out, rip it’s spine out, and then load it up with berries ( unless it’s a titanosaur ) and enjoy your sauropod that regrew it’s spine

my Lvl 128 Argy got killed by one of these Saurpods

Get this first :

Shotgun.

Enduro Stew or Battle Tartare.

Go to redwood and enjoy gun blazing diplo.