CN = Neogene Coccolith Zone
Gartner (1977) uses species name for definition of Zones; Okada & Bukry (1980) use CN = Neogene Coccolith Zone; Abundance: RR=very rare, R=rare, C=common, A=abundant, D=dominant; Preservation: P=poor, M=moderate, G=good
Method: begin of core to 69.749m = CFA Bern layer counting; 69.837m - end of core = densification model by Schwander et al. (1993)
Institute of Oceanographic Sciences Deacon Laboratory (now National Oceanography Centre, Southampton). Authorship was originally "BODC" and was changed by request of the BODC.