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Higgins, Wagner-Gentis & Wagner |
1964 |
Basal Carboniferous Strata in Part of Northern León, NW. Spain: Stratigraphy, Conodont and Goniatite Faunas.
Bulletin de la Societé belge de Géologie, Paléontologie, Hydrologie, 72 (2): 205-249, fig.1-5, pl.1-5; Bruxelles.
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Higgins & Wagner-Gentis |
1982 |
Conodonts, goniatites and the biostratigraphy of the earlier Carboniferous from the Cantabrian Mountains, Spain.
Palaeontology, 25 (2): 313-350, fig.1-16, pl.34-36; London.
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