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——__——————— LOWER LIMESTONE GROUP 
Fic. 79. 
Abundance ftactor= 
BRITISH AVONIAN CONODONT FAUNAS 
40 60 80 
Total no.of specimens 
Total weight of sample 
UY 
Yyy 
Y/ 
105 15) 520 
WMA 
WU 
Uy 
% 
WY 
(0) 
Wills 
Y 
5 10 +5 20 
Total weigpt of sample 
in kilograms. 
Lithological section of part of the Lower Limestone Group in the Dunbar area : 
the Long Craig Upper Limestone, showing the abundance factor for each sample and 
the weight of each sample dissolved. For localities see p. 30. 
