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首页> 外文期刊>Danish medical bulletin >Middle Jurassic (Callovian) cyclostome bryozoans from the Tethyan tropics (Matmor Formation, southern Israel)
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Middle Jurassic (Callovian) cyclostome bryozoans from the Tethyan tropics (Matmor Formation, southern Israel)

机译：特提斯热带（以色列南部马特莫尔组）的中侏罗世（卡洛夫期）气旋苔藓虫

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A tropical Jurassic bryozoan fauna is described here for the first time. The Matmor Formation (Callovian, upper Peltoceras athleta Zone) contains six cyclostome bryozoan species in five genera. Four of these species are new: Microeciella yoavi, Idmonea snehi, Hyporosopora nana, and Hyporosopora negevensis. The Matmor Formation was deposited on a shallow shelf near the palaeoequator on the southwestern margin of the Tethys Ocean, within the Ethiopian Province of the Tethyan Faunal Realm. The Matmor bryozoans share genera with contemporary, non-tropical faunas in Europe, having the most similarities with Callovian assemblages in Poland. The low species richness of the Matmor bryozoan fauna is not unusual for the Jurassic but they do appear to be less abundant than contemporaneous fully marine bryozoan faunas from higher palaeolatitudes. The unusually small zooids of the Matmor bryozoans may be a function of the temperature-size rule because this fauna developed in shallow, warm, tropical waters.
机译：这里首次描述了热带侏罗纪苔藓动物群。 Matmor地层（Callovian，上层Peltoceras athleta区）在五个属中包含六个气孔苔藓虫种。这些物种中有四个是新物种：约氏小肠埃希菌，伊德摩纳氏菌，奈氏海孢和奈非氏菌。 Matmor地层沉积在特提斯群岛Faunal王国埃塞俄比亚省特提斯洋西南边缘古赤道附近的浅层架上。 Matmor苔藓动物与欧洲当代的非热带动物有属，与波兰的Callovian组合最为相似。 Matmor苔藓动物区系的物种丰富度低对于侏罗纪来说并不罕见，但它们的确比古生代较高纬度的同期完全海洋苔藓动物区系的丰富度要低。 Matmor苔藓虫的异常小动物群可能是温度大小规则的函数，因为该动物群是在浅的，温暖的热带水域中发育的。

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