Estudio de los corales con aulos del Viseense (Carbonífero) de la Unidad de la Sierra del Castillo (Área del Guadiato, SO de España)

Abstract

Viséan rugose corals with aulos are studied in this paper. Corals are recorded in four localities from three different areas (Sierra del Castillo, Sierra de la Estrella and Peñarroya) at the Guadiato Area (Ossa Morena). Three species belonging to two genera have been identified and described in detail: Solenodendron furcatum, Solenodendron horsfieldi and Aulokoninckophyllum carinatum. Aulokonickophyllum carinatum and Solenodendron horsfieldi are recorded for the first time in Spain. Microstructural features of Solenodendron are described for the first time. Solenodendron possesses septa with fibrous (water jet) microstructure. On the contrary, Aulokonickophyllum shows trabecular microstructure of the septa in the dissepimentarium. The trabeculae are disposed as a fan system. When the septa reach the tabularium the trabeculae are substituted by fibrous microstructure with water-jet disposition. Microstructural differences between Solenodendron and Aulokonickophyllum allow to propose different evolutive origin for these two genera.