Hi randy.
Yeah, Woodmorappe's a joke. However, in the interests of fairness, I asked my resident science advisor (Dani, age 8) to provide a reference list of critters that could have been on the ark two-by-two (except when it was seven). Once you accept the creationist hyper-"microevolution" from the ark kinds to the 11+ million species alive today (and rejecting the hollow Earth and ark-as-planetoid-sized-spaceship explanations), it's pretty easy to come up with the exact list of what could have been on the ark.
Here is Dani's list of Kreated Kinds:
Feathered Kind
Bug Kind
Plant Kind
Things-that-live-in-water Kind
Things-that-live-in-water-and-breathe-air Kind
Things-too-small-to-see Kind
Furry Animal Kind
Furry-animal-with-wings Kind (had to have bats in there somewhere)
Cold-blooded-animals-with-feet Kind
Cold-blooded-animals-without-feet Kind
Dinosaur Kind
Animals-that-live-in-water-sometimes Kind (she has a thing about frogs, for some reason)
Things-that-live-in-water-and-breathe-air-with-shells Kind (e.g., turtles)
Things-that-live-in-water-and-don't-breathe-air-with-shells Kind (e.g., clams)
People Kind
As you can see, there were in fact about 15 species on the ark. She might have missed some - after all, she's only 8. Could've been housed in something about the size of a small yacht with a couple of acquariums. I don't know why AiG and ICR haven't realized how easy it is...