Science, Creation & EvolutionThe dangers of EvolutionActually, the Frasnian-Fammenian boundary is simply a time marker, it's not geochemical in nature. Perhaps, if you checked what something was before talking about it, you would not be so suspicious. Here's an excerpt from the abstract of our proposal: This proposal seeks funding for a collaborative study to examine the responses of marine-to-continental infaunal organisms and ichnofossil paleocommunities to the late Frasnian (mid-Late Devonian, Frasnian-Famennian, F-F) biotic crisis interval. This research will fill a fundamental gap in our knowledge of ecosystem collapse and recovery through one of the five largest mass extinction intervals in Earth history (Newell, 1967; Sepkoski, 1982, 1996; McGhee, 1996). Despite detailed, global-scale study by researchers, the exact cause(s) of this mass extinction is still debated. Stepped extinction prior to and at the F-F boundary is associated with worldwide collapse of low-latitude, coral- and stromatoporoid-dominated reef ecosystems (Copper, 1977, 2002), an abrupt reduction in global biomass, and loss of up to 82% of marine tropical to subtropical species (Jablonski, 1991).
You did realize of course, that the definition given was done tongue-in-cheek, didn't you? -E |
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