View source for Chalk Biozone 8 - Florentinia deanei

'''Age:'''  Early Coniacian to Mid Coniacian.

'''Macrofaunal correlation:'''  The ''M. cortestudinarium'' Zone.

'''Definition:'''  The interval between the LAD of ''Stephodinium coronatum'' to the LAD of ''Florentinia deanei.''

'''Comments:'''  ''Stephodinium coronatum ''has a well established range top close to the base of the ''M. cortestudinarium'' Zone (Foucher, 1979; Costa & Davey, 1992).  The top of this biozone is also delineated by the LADs of ''Florentinia tenera'' and ''Psaligonyaulax deflandrei'' (see Foucher, 1979; Costa & Davey, 1992; Foucher & Monteil, 1998).  The FAD of ''Florentinia tenera ''subdivides this biozone (Foucher & Monteil, 1998).

'''Lithostratigraphical correlation''':  The upper Lewes Nodular Chalk Formation (Southern Province), the Burnham Chalk Formation (Northern Province) and the Mackerel Formation (North Sea).

[[Category:Palynological_zonation | 008]]