A pokémon theory: Cubone is a charmander

So, like you probably noticed from the title, I am a pokémon fan. I have read the comics, watched the show, and even listened to the crazy theories. My theory is that cubone is actually a charmander. Apparently cubone is supposed to be a baby khengaskhan that lost it's mother and wears it's mother's skull and wields a bone for protection. (Weird and creepy!) However, I think that it is actually a CHARMANDER that lost it's mother in some accident, and I have proof why. Firstly, the charmander and cubone models look very similar, but the baby khenghaskhan is different. Here are what they look like...

Notice how similar the color is. Also, they both weigh almost the same (Charmander is bigger) and are almost the same height. Also, the skull looks like a charizard skull, but not anything like a khenghaskhan skull. What is possible is that cubone was a baby charmander that died alongside it's mother (Charizard) and was somehow resurrected. Thus, it's fire went out, explaining the lack of fire moves. Rising from the dead also explains it's morbid fascination with bones.

FAQ: Responses in italics.
Q: But furnace! Its undead, it should be ghost type!
A: Shadow ball is ghost type. Shadows imply darkness. Derp it should be dark type.

Q: But furnace! Marowak isn't a charizard!
A: Cubone adapted to a new fighting style. By the time it evolves it's too different from charmander.

Q: But furnace! It's part of the story that team rocket kills kanghaskan!
A: Team rocket cannot get rid of a ten year old who owns a charizard but keeps it in a box, instead using a pikachu too stupid to take a thunder stone and evolve.