Correlation of the Culver Cliff section (Paul et al., 1994; Jarvis et al., 2001, 2006) with Craie 701 borehole Cenomanian-Turonian δ¹³C curves. Abbreviations: Alb – Albian; Ce – Cenomanian; Sd – Stoliczkaia dispar; Mm – Mantelliceras mantelli; Md – Mantelliceras dixoni; Ci – Cunningtoniceras inerme; Ar – Acanthoceras rhotomagense; Aj – A. jukesbrownei; C – Calycoceras guerangeri; Mg – Metoicoceras geslinianum; N – Neocardioceras juddii; Wd – Watinoceras devonense; Fc – Fagesia catinus; Mn – Mammites nodosoides.