Publication: Description of the Serpukhovian rugose and tabulate corals from Idmarrach and Tirhela Formations (Adarouch, Morocco)
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2015
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Real Sociedad Española de Historia Natural
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Abstract
Se describen los corales rugosos y tabulados de las formaciones Idmarrach y Tirhela, que se localizan en el área de Adarouch, en la Meseta central de Marruecos. Se han identificado 32 especies de corales rugosos pertenecientes a 19 géneros y una especie de coral tabulado. Las asociaciones de edad Serpukhoviense de las formaciones estudiadas están compuestas en su mayoría por especies que tienen su máximo desarrollo en el Viseense superior. Sin embargo, la mayoría de los taxones identificados en Adarouch han sido mencionados previamente en rocas del Serpukhoviense de otras regiones del Paleotethys occidental y las cuencas epicontinentales del norte de África. Las asociaciones de corales están dominadas por corales coloniales pertenecientes a la familia Lithostrotionidae y por corales solitarios pertenecientes a la familia Aulophyllidae. Son también frecuentes los representantes de las familias Axophyllidae, Cyathaxoniidae, Cyathopsidae, Palaeosmiliidae, Stereophrentidae y Zaphrentoididae. El medio de desarrollo de los corales estudiados fue una plataforma carbonatada interna a media con importantes aportes de terrígenos finos.
The Serpukhovian coral assemblages from the Idmarrach and Tirhela formations in Central Morocco are described. 32 rugose species belonging to 19 genera and 1 tabulate species have been identified. The Serpukhovian assemblages are composed mostly of species that have their greater abundance in the upper Viséan. However, most recorded taxa in Adarouch have been already mentioned in Serpukhovian rocks from other regions in the Palaeotethys and in North African epicontinental basins. The coral assemblage is dominated by colonial corals belonging to the family Lithostrotionidae and solitary corals belonging to the family Aulophyllidae. In addition, representatives of the families Axophyllidae, Cyathaxoniidae, Cyathopsidae, Palaeosmiliidae, Stereophrentidae and Zaphrentoididae are also present in the assemblages. The environment where the corals lived was mostly an inner to middle carbonate platform with a minor but significant input of terrigenous sediments.
The Serpukhovian coral assemblages from the Idmarrach and Tirhela formations in Central Morocco are described. 32 rugose species belonging to 19 genera and 1 tabulate species have been identified. The Serpukhovian assemblages are composed mostly of species that have their greater abundance in the upper Viséan. However, most recorded taxa in Adarouch have been already mentioned in Serpukhovian rocks from other regions in the Palaeotethys and in North African epicontinental basins. The coral assemblage is dominated by colonial corals belonging to the family Lithostrotionidae and solitary corals belonging to the family Aulophyllidae. In addition, representatives of the families Axophyllidae, Cyathaxoniidae, Cyathopsidae, Palaeosmiliidae, Stereophrentidae and Zaphrentoididae are also present in the assemblages. The environment where the corals lived was mostly an inner to middle carbonate platform with a minor but significant input of terrigenous sediments.