Series: Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft Volume: 569
143 pages, 54 illustrations, 4 tables
This paper is the fifth part of a comprehensive study, dealing with the Carboniferous trilobites of the Cantabrian Mountains. Trilobites are described from more than 90 different localities. With the exception of two localities of Westphalian A (Langsettian) age and a few ones corresponding to the lower Cantabrian substage of the basal Stephanian, they all belong to the Westphalian C (Bolsovian) or D (Asturian), thus following closely upon the late Namurian and early Westphalian trilobites described in 1987.
The localities involved mainly occur in 4 principal areas, viz (1) the region of the "Manto del Ponga", east of the Central Asturian coalfi eld (province of Oviedo); (2) the area around the "Puerto del Pando" (province of Le#n); (3) the Casavegas Syncline (province of Palencia); and (4) the southern flank of the Castilleria Syncline (province of Palencia). Additionally, an upper Westphalian trilobite locality is recorded from the Sierra de la Demanda (at Valmala, province of Burgos) for the first time. Most of the localities are dated quite precisely, with reference to brachiopods, foraminifera (Fusulinacea) and/or land plants, and are situated in well-studied sections. On the other hand, it has been possible to propose certain correlations by means of trilobites with a higher degree of precision than it had been feasible previously.
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