Southern Region Chalk Group Lithostratigraphy: Sussex lithostratigraphy of Mortimore (1986a) - Ranscombe Member
Term introduced by Mortimore (1986a), comprising three subdivisions as shown below. Basal marker is the Foyle Marl; holostratotype section is Gun Gardens, Beachy Head [TV 588 964].
Select a subdivision for more information
Macrofossil Biozonation: M. geslinianum Zone (pars), N. juddii Zone, Mytiloides spp. Zone & T. lata Zone
Correlation: see Correlation with other Southern Region Chalk Group classifications
see Correlation with other UK Chalk Group successions
MORTIMORE, R N.1986a. Stratigraphy of the Upper Cretaceous White Chalk of Sussex. Proceedings of the Geologists' Association, Vol. 97(2), 97-139.