Zombie Phylogeny

A phylogenetic tree is a visual representation of descent or ancestry.  Phylogenies help us better understand evolution and speciation.  There are a number of different ways to draw a phyolgeny, and I've here drawn up a proposed tree for movie zombies.

The tree reads from the bottom up, from the first ancestral undead to the most recent type of zombie (origin unknown).  I've also included the mummy and two varieties of vampires, because these undead are similarly descended from the ancestral undead.

Click to biggify.