Southern Region Chalk Group Lithostratigraphy: Sussex lithostratigraphy of Mortimore (1986a) - Ranscombe Member

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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.