BRITISH AVONIAN CONODONT FAUNAS 255 
‘ 
125 
eR ORD 
ZONE 
LHL 
il 
D 
IH 
L 
H 
I 
wi 
Se 
82269248 
Ge Gs a Ba) 
oi 
8 
LN NYLON USL CoN LN 
bel_] rer@=ys= an paun| 
papas cere Ole ce 
lige 
UHH 
. 
Abundance factor = lotal no. of specimens Total weight of 
Total weight of sample sample in kilograms 
Fic. 68. Continuation of the lithological section of the Dibunophyllum Zone in the Avon 
Gorge showing the abundance factor of conodonts in each sample dissolved in acetic acid. 
Samples D to D 22 were collected from the roadside exposure (ST 564737). 
