کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4748392 1360103 2012 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lower Bashkirian conodonts from the Iraty Formation in the Alduides-Quinto Real Massif (Pyrenees, Spain)
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فسیل شناسی
پیش نمایش صفحه اول مقاله
Lower Bashkirian conodonts from the Iraty Formation in the Alduides-Quinto Real Massif (Pyrenees, Spain)
چکیده انگلیسی

The stratigraphy of the Carboniferous Iraty Formation is described in several sections from the southwestern Alduides-Quinto Real Massif (western Pyrenees), and biostratigraphy is updated based on conodont occurrences. The Ochaverri Member yields upper Serpukhovian conodonts, whereas the lower part of the overlying Asturreta Member is assigned to the lower Bashkirian, according to the occurrences of Declinognathodus noduliferus bernesgae and D. n. noduliferus, respectively. The upper beds of the formation (Baserdi Member) are correlated with the Kinderscoutian to lowermost Marsdenian English substages (lower Bashkirian), and new conodont occurrences are the oldest species of Neognathodus and Idiognathodus known in Spain. We discuss the status of Idiognathoides macer, several species related to I. sinuatus, I. sulcatus and Lochriea glaber. Conodont diversity is related to stratigraphic distribution of species and conodont biofacies. Finally, the lowermost Marsdenian to upper Bashkirian age of the siliciclastic rocks overlying the Iraty Formation is also discussed and compared with known data from localities in the western Pyrenees.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geobios - Volume 45, Issue 4, July–August 2012, Pages 397–411
نویسندگان
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