BRITISH AVONIAN CONODONT FAUNAS 261 
78 4 ; 
(tw 
irs 4, ' 
, 
ees eu 
z 
< W 
_ z e 
Pomel = 
645, |O|N 
5 > 
alx 
16/2! 251t COVERED 
SARC NEN 
'! [Fara [= 4 = X 
15 ft COVERED 
Total no.of specimens Total weight of sample 
Total weight of sample in kilograms. 
Abundance factor= 
DEVONIAN 
FARLOVIAN 
Fic. 74. Lithological section of the Cleistopova Zone at Farlow, Shropshire (Map reference 
SO 642808), showing the abundance factor of conodonts in each sample and the weight 
of each sample dissolved. 
