Last of Their Race - The Elders of the Universe

The Elders 
If you aren't familiar with them, the Elders of the Universe get their great power from being the last surviving member of their race. As long as they continue to do what they enjoy, they are virtually immortal. They are imbued with the Power Primordial - the energies left over from the creation of the universe.
In his battle with the Obliterator, the Silver Surfer convinced him to spare the Zenn-Lavians, for if he killed them all the Surfer would be the last of his kind and therefor become an Elder and his "brother."

Technically, the Silver Surfer is the last Zenn-Lavian (check this blog). In an alternate future, Lightwave is from Zenn-La as well. Does that mean there are other Zenn-Lavians still alive in the 616 universe? This is kind of a bad example, since how could we even tell the Silver Surfer has the powers of an Elder since he is already so powerful and has such great longevity. 

What about Gamora - the last surviving Zen Whoberi? Should she not have the great powers of an Elder of the Universe?

What got me thinking about this was the Earth-691 Guardians of the Galaxy. Martinex is the last survivor of Pluto. Charlie-27 is the last Jovian. Nikki is the last Mercurian. Do they not fit the qualifications of an Elder of the Universe?

Another example I can think of is Stardust. She fed the remaining survivors of her race to Galactus. 

Are there any others in the Marvel Universe you can think of that are the last of their kind?
Posted by Nova`Prime`

Excellent points on those characters, my guess for the 691 Guardians is that they are in an alternate reality, so its possible that being an Eldar is different from reality to reality. Stardust is kinda in the same spot as Surfer how can you tell, she is already amped up. The only one that I can see would be Gamora, but really do we need tons of characters with unlimited power?

Oh and to your question, I can't think of any of the top of my head

Posted by Doctor!!!!!

I should add thes guys to my "last of their kind" list
Posted by jloneblackheart
@Doctor!!!!!: They all qualify. Every Elder does (check their members page), Martinex, Charlie-27, Nikki, Stardust and Gamora. Firelord may possibly be the last Xandarian as well. I could be wrong about that though. Yondu was long considered the last Alpha Centaurian, then Photon came along.

Of course the Guardians are all from a different reality.

@Nova`Prime`: I don't necessary want a ton of super powerful characters, but I do like when continuity jives. I do like Gamora just as she is. She's plenty awesome. 
Posted by suicidejocky

The Elders of the Universe are more than just the surviving members of thier race, they also had the advantage of being members of the first sentient races after the big bang. In combination with the fact that it is thier obsessions that 'power' thier immortaility. If they lose that, they lose there immortality. 
I think you had to be the last of your race when the universe was still young and be part of an advanced civilization to boot  to qualify as an Elder.  
Posted by kfhrfdu_89_76k

Stan lee.