BRITISH AVONIAN CONODONT FAUNAS 249 
‘ — Wa 108 
=e Y 
plo eto Mata 
| =O eo oo Ho a ata 
Senos 
\ 
aie UL 
tities 7) 
ONE 
+] 
c 
g 
B 
Ae 
He 
OSBEEBB8) 
[ 
a 
WC 
qe s WY, 
Abundance factor= Lotal no.of specimens Total weight of 
Total weight of sample sample in kilograms 
Fic. 62. Lithological section of the Lower Caninia Zone in the Avon Gorge showing the 
abundance factor of conodonts in each sample dissolved in acetic acid. Samples C 1-C 11 
were collected in the Railway Cutting (ST 559745) and Samples C 12-C 25 in Quarry 3 
(ST 560744). 
