Abstract Late Cambrian (Iverian, Jiangshanian) agnostoids and trilobites are described from two localities in the Professor Range area of western Tasmania. The fossils occur within a thick folded flysch succession of siltstone, mudstone, quartzwacke sandstone and siliceous conglomerate that forms the lower part of the Owen Group correlatives in this area. The flysch succession has a conformable and probable gradational contact with the underlying Mt Read Volcanics and is abruptly overlain by the siliceous pebble-cobble conglomerate correlated with the Middle Owen Conglomerate of the West Coast Range. The stratigraphically lower southern locality contains the agnostoids Pseudagnostus sp. and Agnostinae gen. et sp. indet. plus the polymerid trilobites Parabolina sp., Hedinaspis sp. cf. H. regalis and Eugonocare sp. The northern locality contains the agnostoids Rhaptagnostus sp. and Pseudagnostus sp. plus the polymerid trilobites Hedinaspis sp. cf. H. regalis, Ketyna? sp. 1, Ketyna? sp. 2, and Cermatops sp. It is possible that most specimens of the cosmopolitan genus Hedinaspis belong in the type species, H. regalis. Christopher J. Bentley [bigfossil@bigpond.com], 30 Albert Street, Clare SA 5453; James B. Jago [jim.jago@unisa.edu.au], University of South Australia, School of Natural and Built Environment, Mawson Lakes, SA 5095; Keith D. Corbett [keith.corbett@bigpond.com], 35 Pillinger Drive, Fern Tree Tas 7054, Australia.

中文翻译：

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来自西塔斯马尼亚教授岭地区的晚寒武世（伊维利亚、江山期）化石

摘要 描述了塔斯马尼亚西部教授岭地区两个地方的晚寒武纪（伊维利安、江山期）不可知类动物和三叶虫。化石出现在粉砂岩、泥岩、石英砂岩和硅质砾岩的厚褶皱复理石层序中，形成了该地区欧文群相关物的下部。复理石层序与下面的 Mt Read 火山具有一致且可能的渐变接触，并突然被与西海岸山脉中欧文砾岩相关的硅质鹅卵石砾岩覆盖。地层较低的南部地区包含 agnostoids Pseudagnostus sp。和 Agnostinae gen。等 sp. 插入。加上聚合三叶虫 Parabolina sp., Hedinaspis sp. 参见 H. regalis 和 Eugonocare sp。北部地区包含 agnostoids Rhaptagnostus sp。和 Pseudagnostus sp。加上聚合三叶虫 Hedinaspis sp。参见 H. regalis，凯蒂娜？sp. 1、凯蒂娜？sp. 2，和Cermatops sp。世界性的 Hedinaspis 属的大多数标本可能属于模式种 H. regalis。Christopher J. Bentley [bigfossil@bigpond.com], 30 Albert Street, Clare SA 5453; James B. Jago [jim.jago@unisa.edu.au]，南澳大利亚大学自然与建筑环境学院，莫森湖，SA 5095；Keith D. Corbett [keith.corbett@bigpond.com], 35 Pillinger Drive, Fern Tree Tas 7054, Australia。世界性的 Hedinaspis 属的大多数标本可能属于模式种 H. regalis。Christopher J. Bentley [bigfossil@bigpond.com], 30 Albert Street, Clare SA 5453; James B. Jago [jim.jago@unisa.edu.au]，南澳大利亚大学自然与建筑环境学院，莫森湖，SA 5095；Keith D. Corbett [keith.corbett@bigpond.com], 35 Pillinger Drive, Fern Tree Tas 7054, Australia。世界性的 Hedinaspis 属的大多数标本可能属于模式种 H. regalis。Christopher J. Bentley [bigfossil@bigpond.com], 30 Albert Street, Clare SA 5453; James B. Jago [jim.jago@unisa.edu.au]，南澳大利亚大学自然与建筑环境学院，莫森湖，SA 5095；Keith D. Corbett [keith.corbett@bigpond.com], 35 Pillinger Drive, Fern Tree Tas 7054, Australia。