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Theresa says:
I have heard that it was the Dekkan traps volcano eruption that killed them. Does that create Co2 as well?
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AleaJactaEst says:
Interestingly the only geologist on the paper was the third author. The KT boundary discussion (now Im showing my age as I prefer the KT monika) is many years old. The related extinction event took several million years and this is shown in the fossil record. Global wildfires would have caused an immediate (in geological terms) fingerprint. One that does not exist in the said record.