Chalk Group Lithostratigraphy: Northern England - Sponge Beds
Whitham (1993) identified two main concentrations of sponges in the Flamborough Chalk, the lower of which, c. 11 m thick, extending from c. 2 m above the Daneswood Upper Marl to c. 5 m above the Longwood Marl, is the Flamborough Sponge Bed (Whitham, 1993). The sponges at this horizon are numerous and well preserved, and Whitham (1993) gave an extensive fauna. Another massive sponge bed (un-named), c. 1 m thick, occurs between the Marton Hall Marl and Sewerby Hall Marl (Whitham, 1993).
Macrofossil Biozonation: I. lingua Zone
Correlation: see Correlation with other UK Chalk Group successions
References
WHITHAM, F.1993. The stratigraphy of the Upper Cretaceous Flamborough Chalk Formation north of the Humber, north-east England. Proceedings of the Yorkshire Geological Society, Vol. 49(3), 235-258.