A great many species will only be covered at the genus level since there
isn't much known about them individually. This >is not a problem.
The overlap between this proposed project and Wikipedia is simply too great
and will thus harm our coverage of taxa and >species by dividing that aspect between two different projects.
-- mav
For those species of dubious classification, known only at genus-species, how about putting them into one of the Kingdoms (for animals, that's easy, but with protozoa, bacteria, plants, that'd be a bit more difficult) or in a category "Unknown Classification" and ask for more info on that species from users.
James