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Bisat |
1952 |
The goniatite succession at Cowdale Clough, Barnoldswick, Yorkshire.
Transactions of the Leeds Geologists Association, 6 (4): 155-181, fig.1-3, pl.1-3; Kendal.
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Wagner-Gentis |
1981 |
An upper Viséan goniatite from the Algarve, Portugal.
Publ. Mus. Lab. Miner. Geol. Fac. Ci. Porto, 42 (4): 1-4, fig.1-2, pl.1; Porto.
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