Authors Year Title
Garcia-Alcalde, Arbizu & García_López 1990d Devonian stage boundaries (Lochkovian/Pragian, Pragian/Emsian, and Eifelian (Givetian) in the Cantabric region (NW Spain).
Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 180 (2): 177-207, fig.1-12; Stuttgart.
Sanz_López, García_López & Montesinos 1999 Biostratigraphy and sedimentation of the Vidrieros Formation (middle Famennian-lower Tournaisian) in the Gildar-Montó unit (northwest Spain). [J.Sanz-López,S. García-López,J.R.Montesinos & M.Arbizu]
Bolletino della Società Paleontologica Italiana 37 (1998): 393-406, 5 text-figs., 2 pls., Modena.