What should we name the world and the wikia?
Also, what subkingdoms and phylae should the kingdom Animalia be split into? So far we have a flying trilobite, a shark, a tiny burrowing 'dog', and a swimming jet bug tank. The flying trilobite and swimming jet bug tank seem like they have to be in the same phylum, and so do the shark and tiny burrowing 'dog'.
Maybe the seemingly-vertebrates can actually be evolved from Shevek23's vertebrato-echidnoderms?
Or, maybe we should say that these organisms that we already have, however they evolved, were transplanted to the world with those vertebrato-echidnoderms having just evolved. Then we figure out what the world would be like.
Though if we do the latter, I say we ought to have some trees and grass, a species of ant, and the sharks and jet bugs should live in a body of water separate from that of the vertebrato-echidnoderms, so they get a chance to evolve.
Well, 1: I vote for the title being 'One World'
2:In paragraphs 4-5, are you suggesting animals being transported across parallel universes? If so, that would make a great ASB idea.