MAN WORKED BONES FROM THE NORWICH CRAG AT EASTON BAVENTS H . D . COLLINGS
A PAPER by Messrs. Larwood and Martin on the Stratigraphy and Fauna of the Easton Bavents cliffs was published in the Transactions for 1953 (1). Since then the sea has swallowed up a great deal more of the cliffs but the sections are still much the same, with the grey Bavents Clay overlaying the Antian beds of the Norwich Crag with its sands, gravels, and shell beds. In the meantime, Dr. R. G. West has studied the fossil pollen and its climatic background in East Anglia (2) and Mr. H. E. P. Spencer, F.G.S., has written a number of most valuable papers for the Transactions on the Villafranchian fauna and notably "The Crag Epochs and their Mammals" (3).
« BJ W
Stages Climate
ri o 9 °
N.W.
3 1
"Cromerian"
CROMERIAN
Menapian
BAVENTIAN
Europe
East
Anglia
Age Millions of years ago
O F-T
0-77
g u o o cn 3 ö s 5
Cool to Sub-Arctic 0-87
Waalian
ANTIAN
T e m p e r a t e with w a r m spell
CO a
09 « ja CO 3 1-60 ° jj. q 1-22
Eburonian
THURNIAN
Cool to Sub-Arctic
Tiglian
LUDHAMIAN
T e m p e r a t e with w a r m spells
Praetiglian
>
O
Sub-Arctic
? PLIOCENE
Warm
FIG. 1 Correlation of geological stages, climates, and dating.
Dating The East Anglian Crags may in many ways be looked upon as a westerly extension of the deposits of the Netherlands and Belgium where much work has been done on the geology, climates and dating and the recent highly specialised palaeomagnetic researches