Figure F6. Stratigraphic summary for 85–60 Ma. Biostratigraphy after Bralower, Premoli Silva, Malone, et al. (2002), Lees and Bown (this volume), Bralower (this volume), Petrizzo et al. (this volume), and Premoli Silva et al. (this volume). Condensed pattern annotates intervals in which some biozones could not be identified with certainty and/or may comprise short hiatuses or unconformities. Note that in the Cretaceous sections older than Campanian the recovery was very poor due to diffuse chert layers alternating with softer chalk. OAE = Ocean Anoxic Event, TD = total depth.

Figure F6. Stratigraphic summary for 85–60 Ma. Biostratigraphy after Bralower, Premoli Silva, Malone, et al. (2002), Lees and Bown (this volume), Bralower (this volume), Petrizzo et al. (this volume), and Premoli Silva et al. (this volume). Condensed pattern annotates intervals in which some biozones could not be identified with certainty and/or may comprise short hiatuses or unconformities. Note that in the Cretaceous sections older than Campanian the recovery was very poor due to diffuse chert layers alternating with softer chalk. OAE = Ocean Anoxic Event, TD = total depth.