Carboniferous— Permian 
Triassic 
Jurassic 
2 S o i 
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TO W 
2 O 
2 . 
2n 
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Lower Gondwanas 
Middle Gond. 
Upp.Gond 
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Glossopteris 
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fJO o 
S2P 
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P P 
5 M CD ti2 O 
p'tH 
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o Q 
g w 
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Lower coal-bearing strata 
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5;? 
n> <rt- 
O-B 
if 
2 H 
2 S 
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