We present a quantitative test of end-Cretaceous extinction scenarios and how these would have affected dinosaur habitats.
Combining climate and ecological modeling tools, we demonstrate a substantial detrimental effect on dinosaur habitats caused by an impact winter scenario triggered.
We were not able to obtain such an extinction state with several modeling scenarios of Deccan volcanism.
We further show that the concomitant prolonged eruption of the Deccan traps might have acted as an ameliorating agent, buffering the negative effects on climate and global ecosystems that the asteroid impact produced at the Cretaceous–Paleogene boundary.
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