“…ETM3, here referred to as the K event following the nomenclature in Westerhold et al. (2017), stands out as a prominent hyperthermal in records from widespread locations, including Atlantic drill sites (Cramer et al., 2003; D'Onofrio et al., 2020; Luciani et al., 2017; Röhl et al., 2005; Thomas et al., 2018), uplifted Tethys Ocean sections (Agnini et al., 2009; Galeotti et al., 2019), equatorial Pacific drill sites (Bhattacharya & Dickens, 2020; Bralower, Parrow, et al., 1995; Bralower, Zachos, et al., 1995; Cramer et al., 2003; Westerhold et al., 2018), and uplifted southwest Pacific sections in New Zealand (Slotnick et al., 2012, 2015). In bulk carbonate stable isotope records, δ 13 C and δ 18 O values typically drop rapidly by about 0.6‰ followed by a logarithmic recovery.…”