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标题：MIDDLE DEVONIAN BRACHIOPODS FROM NORTHERN MAÏDER (EASTERN ANTI-ATLAS MOROCCO)
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作者：Adam T.HALAMSKI ; Andrzej BALIŃSKI ; Jens KOPPKA 等
期刊名称：Annales Societatis Geologorum Poloniae
印刷版ISSN：0208-9068
出版年度：2022
卷号：92
期号：1
页码：1-86
DOI：10.14241/asgp.2022.03
语种：English
出版社：Panstowowe Wydawnictwo Naukowe
摘要：Sixty brachiopod species are reported from the Taboumakhlouf Formation (upper Eifelian) and the Bou Dib Formation (upper Eifelian to Givetian) of Jbel Issoumour northern Maïder Anti-Atlas Morocco on the basis of collections made by Volker Ebbighausen. The stratigraphy is based on reports of co-occurring trilobite assemblages. The relatively diversified fauna pre-dates the Taghanic event and is dominated in terms of diversi?ty by atrypides and rhynchonellides (11 species each); other frequent species include Poloniproductus varians Aulacella prisca Tyersella tetragona Schizophoria schnuri Athyris ex gr. concentrica Yeothyris? sinuata and Thomasaria simplex. Spinatrypa ennigaldinannae Halamski and Baliński sp. nov. from the upper Eifelian is char?acterised by a transverse shell typically 16–18 mm wide with 19–22 ribs. Prodavidsonia ebbigahuseni Halamski and Baliński sp. nov. differs from other representatives of the genus in having nearly flat shells. Eressella coronataHalamski and Baliński nom. nov. is proposed as a replacement name for the permanently invalid Rhynchonella coronata Kayser 1871 (non R. coronata Moore 1861). Thomasaria simplex is documented as being a particularly variable species (costation tongue interarea position) so its broad taxonomic treatment is favoured. The brachi?opod fauna shows distinct Rhenish affinities (numerous species in common with the Eifel and the Holy Cross Mountains) like the coeval fauna from southern Maïder described previously. The Middle Devonian brachiopod fauna from the whole Maïder (north described here and south described previously) totals 87 species.
关键词：Systematics;Brachiopoda;Morocco;Devonian;Eifelian;Givetian