Thick culm
NC2327
NC6326
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NC7525
NC7550
NC7572
NC7650
NC7676
NC7713
NC7750
NC7820
NC7836
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NC7901
NC7928
NC8028
NC8029
NC8039
NC8054
NC8081
NC8345
NC8755
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NC9066
NC9069
NC9084
ND0025
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ND0401
ND0614
ND0656
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ND1103
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ND1131
ND1256
ND1310
ND1517
ND1555
ND1604
ND1629
ND1648
ND1706
ND1711
ND1905
ND1915
ND1965
ND2022
ND2054
NE7044
NE8932
NF2607
NG7338
NG8895
NG9874
NG9876