  Recent evidence quite convincingly indicates that the Late Permian biotic
crisis was in fact a binary extinction with a distinct end-Guadalupian
extinction pulse preceding the major terminal end-Permian Tartarian event by 5
million years. In addition anoxia appears to be closely associated with each of
these end-Paleozoic binary extinctions. Most leading models cannot explain both
anoxia and the binary characteristic of this crisis. In this paper we show that
the recently proposed volcanogenic dark matter scenario succeeds in doing this.
