Ja. Burnett et F. Whitham, Correlation between the nannofossil and macrofossil biostratigraphies and the lithostratigraphy of the Upper Cretaceous of NE England, P YORKS G S, 52, 1999, pp. 371-381
To supplement the recent documentation of the stratigraphy of the Ferriby,
Welton, Burnham and Flamborough Chalk formations by Whitham, a study of the
nannofloras of this region was undertaken, allowing correlation between th
e lithostratigraphical units, the macrofossil zones and the recently revise
d standard nannofossil zonation scheme for the Upper Cretaceous. Attention
is draw to the sequence of integrated nannofossil and macrofossil events ar
ound the stage boundaries, and some preliminary comparisons of the nannofos
sil events are made with those of southern England and northern Germany. It
is suggested that further biostratigraphical work needs to be carried out
through the Cenomania/Turonian boundary interval, in order to determine the
precise relationship between the nannofossil events and the boundary event
. The view that the nannofossil Marthasterites furcatus is a suitable marke
r for the Turonian/Coniacian boundary is reiterated as being erroneous. Doc
umentation of the nannofloras of NE England have proved them to have been i
nfluenced by a northern high-latitude (boreal) palaeobiogeographical settin
g during the Late Cretaceous.