> associated with the Wilkes Land Crater impactor Erwin discusses that theory but doesn't agree with it. In any case, 1) there are other mass dyings that are

> associated with the Wilkes Land Crater impactor Erwin discusses that theory but doesn't agree with it. In any case, 1) there are other mass dyings that are definately not impactors like the oxygen crisis. 2) there are other basaltic eruptions on the scale of the siberian traps (like CAMP) where the cause is known and not an impactor.