A new large edrioasteroid from the Seifen Formation of the Westerwald, Rhenish Massif (Lower Devonian, Germany)

被引：1

作者：

Mueller, Peter ^{[1
]}

Hahn, Gerhard ^{[2
]}

机构：

[1] Grauen Stein 4, D-56244 Freilingen, Germany

[2] Berliner Str 31, D-35282 Rauschenberg, Germany

来源：

PALZ | 2020年 / 94卷 / 04期

关键词：

Echinodermata; Edrioasteroidea; Seifeniagen; nov; Lower Devonian; Westerwald; Rhenish Massiv; Germany; SLATE MOUNTAINS; ORDOVICIAN EDRIOASTEROIDS; ECHINODERMATA; GEN; SYSTEMATICS; MORPHOLOGY;

D O I：

10.1007/s12542-020-00526-7

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

A large new edrioasteroid genus from the Seifen Formation (Lower Devonian, Germany),Seifeniagen. nov., is introduced. The type species,S. ostarasp. nov., is described and figured, and its systematic position is discussed.Seifeniashows a highly derived evolutionary position in comparison with other Lower Devonian genera. With a diameter up to 57 mm, it is the largest known domal genus of the Agelacrinitidae. Most specimens ofS. ostaraare not found in contact with the substrate. Possible reasons for this phenomenon are discussed. Furthermore, synecological interactions ofSeifeniawith brachiopods and auloporid corals are documented.

引用

页码：715 / 724

页数：10

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