Relationship between extinction magnitude and climate change during major marine and terrestrial animal crises

Abstract. Major mass extinctions in the Phanerozoic Eon occurred during abrupt global climate changes accompanied by environmental destruction driven large volcanic eruptions and projectile impacts. Relationships between land temperature anomalies terrestrial animal extinctions, as well difference response marine animals to Phanerozoic, have not been quantitatively evaluated. My analyses show that magnitude of major invertebrates tetrapods correlate with coincidental anomaly habitat surface temperatures biotic crises, respectively, regardless warming cooling (correlation coefficient R=0.92–0.95). The loss more than 35 % genera 60 species corresponding so-called “big five” correlates a >7 ∘C 7–9 for >∼7 tetrapods, ±1 error average, although amount data is small. These relationships indicate (i) environment associated high-energy input volcanism impact relate (ii) future anthropogenic extinction will reach when parallelly anomaly. In linear relationship, I found lower tolerance same events higher sensitivity change animals. phenomena fit ongoing extinctions.