Siphonophrentides et Cyathophyllides près de la limite Eifelien-Givetien à Resteigne (Ardenne, Belgique)
Coen-Aubert, M. (1996). Siphonophrentides et Cyathophyllides près de la limite Eifelien-Givetien à Resteigne (Ardenne, Belgique). Bull. Kon. Belg. Inst. Natuurwet. Aardwet. = Bull. - Inst. r. sci. nat. Belg., Sci. Terre 66: 19-36
In: Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen. Aardwetenschappen = Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. Sciences de la Terre. KBIN: Brussel. ISSN 0374-6291, meer
Breviphrentis martinae n. sp. and Rhytidolasma dahlemense (HALLER, 1936) have been collected near the base of the Hanonet Formation at Resteigne; this level still belongs to the Eifelian and the discovery of these two taxa implies a North American influence which also characterizes other parts of Western and Central Europe. Keriophyllum maillieuxi (TSIEN, 1969) has been observed at the top of the Hanonet Formation and at the base of the overlying Trois-Fontaines Formation in Resteigne, Nismes and Glageon; these layers belong to the base of the Givetian. From a taxonomic point of view, Keriophyllum yakowlewi HALLER, 1936 is placed in synonymy with Rhytidolasma dahlemense whereas the definitions of the genus Keriophyllum WEDEKIND, 1923 and of the species K. maillieuxi are emended. Several type specimens of the genera Rhytidolasma PEDDER, 1989 and Keriophyllum WEDEKIND, 1923 are also refigured.
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