View source for Rowe (1900) - Micraster cortestudinarium Zone

'''Biostratigraphical correlation''': Equates with the upper ''S. plana'' Zone, and a variable interval from within the top of the ''M. cortestudinarium'' Zone to the basal ''M''. ''coranguinum'' Zone, of current usage. Rowe was inconsistent in his recognition of the top of this zone in different sections, selecting levels at the Light Point / Beachy Head Beds, Shoreham Marl 2 (the currently accepted definition of the top of the zone) and within the Belle Tout Beds (Wood, WH/95/31R).

'''Lithostratigraphical correlation''': Equates with the upper Lewes Nodular Chalk Formation and, depending on how the top of the zone is defined, also the basal part of the Seaford Chalk Formation of southern England.

'''Age''': Late Turonian & Early Coniacian.

[[Category:Comparison of historical biozonal schemes and nomenclatures with the currently accepted standard biozonal scheme for the UK Chalk Group | 004]]