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The trilobite species of three genera included in the Family Solenopleuridae: Parasolenopleura, Badulesia, and Pardailhania are revised. These genera have a great biostratigraphic interest due to their broad distribution in the Miaolingian Series (former middle Cambrian) of the Mediterranean Subprovince and because they constitute an evolutionary lineage, that facilitates an accurate regional correlation. Two of these genera (Pardailhania and Badulesia) have been used to define middle Cambrian zones in Spain (lower and middle Caesaraugustan, equivalent to the uppermost Wuliuan and the lower Drumian stages). Although, all authors have been using the same species to establish the Mediterranean biozonation of this interval time, the zone concept has been modifi ed since Sdzuy’s original idea. A thorough study of three localities from the Iberian RESUMEN Se revisan las especies de tres géneros de trilobites pertenecientes a la Familia Solenopleuridae: Parasolenopleura, Badulesia y Pardailhania. Estos géneros tienen un gran interés bioestratigráfico debido a su ámplia distribución en la Serie Miaolingiense (antiguo Cámbrico medio) de la Subprovincia Mediterránea y por constituir un linaje evolutivo que facilita una correlación regional precisa. Dos de estos géneros (Pardailhania y Badulesia) han sido utilizados para defi nir zonas del Cámbrico medio en España (Caesaraugustiense inferior y medio, equivalente a la parte más alta del piso Wuliuense y al Drumiense inferior). A pesar de que todos los autores han utilizado las mismas especies para establecer la biozonación Mediterránea, el concepto de zona ha sido modifi cado desde la idea original de Sdzuy. El estudio completo de tres localidades de las Cadenas Ibéricas 2 CHIRIVELLA MARTORELL, LIÑÁN, DIES ÁLVAREZ & GOZALO Figure 1. Biostratigraphical subdivisions of the level studied in the lower and middle Caesaraugustan of Spain and France (Miaolingian Series) in a historical context.

spanish journal of paleontology/spanish journal of palaeontology

Systematic and biostratigraphy of the genera Parasolenopleura, Badulesia, and Pardailhania in the Iberian Chains: a useful zonation for the Miaolingian Series (former middle Cambrian) in the Mediterranean region