Willi Ziegler and Charles A Sandberg (1984)
Palmatolepis-based revision of upper part of standard Late Devonian conodont zonation. In:D.L. Clark,ed. Conodont Biofacies and Provincialism
Geological Society of America Special Paper, vol. 196 p. 179-194.
13501, 158, 173, Lg, N, SYNDIN, FA, F, PALMIC, STRATBIO, PALECO
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