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首页> 外文期刊>Journal of Systematic Palaeontology >STROPHOMENATE BRACHIOPODS FROM THE LATE ORDOVICIAN BODA LIMESTONE OF SWEDEN: THEIR SYSTEMATICS AND IMPLICATIONS FOR PALAEOGEOGRAPHY
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STROPHOMENATE BRACHIOPODS FROM THE LATE ORDOVICIAN BODA LIMESTONE OF SWEDEN: THEIR SYSTEMATICS AND IMPLICATIONS FOR PALAEOGEOGRAPHY

机译：瑞典晚期奥陶纪的博达保护区的纹状体腕足动物：它们的系统学及其对古地理的启示

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摘要

Brachiopods of the superfamilies Strophomenoidea, Plectambonitoidea and Chilidi-opsioidea are revised and described from the late Ordovician (Middle Ashgill) carbonate mud mounds of the Boda Limestone of Sweden. The fauna is compared and contrasted with those from mud mounds of comparable age in England (the Keisley Limestone) and Ireland (the Kildare and Portrane Limestones). New strophomenoidean genera are Trondomena and Ungulomena (both Glyptomenidae), the latter within the new subfamily Ungulomeninae. A new subgenus is Leptaena (Ygdrasilom-ena) (Rafinesquinidae), and new strophomenoid species are Gunnarella magnifica, Holtedahlina suedica, Katastrophomena (Costistrophomena)? magna, Luhaia candelabra, Leptaena (Leptaena) bergstroemi, Leptaena (Ygdrasilomena) roomusoksi, Kiaeromena (Kiaeromena)? grandis, Trondomena bella, Ungulomena lindstroemi and Christiania dalarnensis; new plectambonitoidean species are Bimuria popovi, Leangella (Leangella) longae, Anoptambonites williamsi and Ptychoglyptus ingenuus. Ten more unnamed and probably new species and at least two more new genera are described under informal nomenclature (A to J). The Strophomenoidea, with at least 20 named and unnamed species in the Boda Limestone, are found to have been much more diverse and endemic than the Boda Plectambonitoidea and the Chilidiopsoidea: the latter two superfamilies include no definite endemic genera and those that occur are relatively cosmopolitan in the low latitudes in which the Baltica Terrane was situated in the late Ordovician. Some faunal links are established with the neighbouring terranes of Avalonia, Laurentia and Siberia, but, in contrast to the plectambonitoideans and chilidiopsoideans, the relative endemicity of the Boda Strophomenoidea is striking and that local radiation was probably caused by the mid-Ashgill Boda Warming Event.
机译：对超家族的腕足纲动物，斜齿棘足纲纲动物和奇似斜齿兽纲的腕足动物进行了修订，并根据瑞典博达石灰岩的奥陶纪（中阿什吉尔中部）碳酸盐泥土丘进行了描述。将该动物群与来自英格兰（基斯利石灰石）和爱尔兰（基尔代尔和波特兰石灰岩）的同龄泥土堆进行了比较和对比。裂殖纲新属是Trondomena和Ungulomena（均为Glyptomenidae），后者属于新的Ungulomeninae亚科。一个新的亚属是Leptaena（Ygdrasilom-ena）（Rafinesquinidae），新的类球菌属物种是巨大的Gunnarella，壮观的Holtedahlina，Katastrophomena（Costistrophomena）？ magna，Luhaia烛台，Leptaena（Leptaena）bergstroemi，Leptaena（Ygdrasilomena）roomusoksi，Kiaeromena（Kiaeromena）？大提琴，Trondomena bella，Ungulomena lindstroemi和Christiania dalarnensis；新的lectlectambonitoidean物种是Bimuria popovi，Leangella（Leangella）longae，Anoptambonites williamsi和Ptychoglyptus ingenuus。在非正式命名法下（A至J）描述了另外十个未命名且可能是新物种，以及至少另外两个新属。与博达Plectambonitoideaea和Chilidiopsoidea相比，博达石灰石中至少有20个具名和未命名的物种的嗜齿寄主藻（Strophomenoidea）被发现具有更多的多样性和特有性：后两个超科没有明确的特有属，并且发生的是相对世界性的在波罗的海地形位于奥陶纪晚期的低纬度地区。与邻近的阿瓦隆，劳伦蒂亚和西伯利亚地带建立了一些动物区系，但是与侧柏类动物和壳类类动物相比，博达嗜盐菌的相对流行性显着，局部辐射可能是由中阿什吉尔博达变暖事件引起的。 。

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