Latest Cambrian trilobites from Misery Hill, western Tasmania

An unnamed fossiliferous sandstone — siltstone sequence of shallow water origin crops out along the western flank of Misery Hill, western Tasmania. It rests unconformably on the Misery Conglomerate the top unit of the Dundas Group; the contact with the overlying Ordovician Gordon Group limestone is concealed. Fossils within the sandstone — siltstone sequence include inarticulate brachiopods, bellerophontid monoplacophorans and two new saukiid trilobites, Diemanosaukia miserabilis gen. et. sp. nov. and Saukia? blissetti sp. nov. A very Late Cambrian, probably Payntonian, age is suggested by the trilobites, thus giving an upper limit to the age of Dundas Group and a lower limit to the age of the Gordon Group limestone in the Dundas area.

[1]  J. H. Stitt.  Trilobites of the Upper Cambrian Sunwaptan Stage, Southern Canadian Rocky Mountains, Alberta. , 1988 .

[2]  K. D. Corbett,et al.  Stratigraphic and structural relationships and evidence for Cambrian deformation at the western margin of the Mt Read Volcanics, Tasmania , 1987 .

[3]  B. Strait,et al.  Revision of an Early Arenig trilobite faunule from the Caroline Creek Sandstone, near Latrobe, Tasmania , 1985 .

[4]  Qian Yiyuan.  Late Late Cambrian trilobites from the Tangcun Formation of Jingxian，southern Anhui , 1985 .

[5]  J. Laurie,et al.  The Cambrian system in Australia, Antarctica, and New Zealand , 1985 .

[6]  J. Repetski,et al.  Newly discovered youngest Cambrian or oldest Ordovician fossils from the Robertson Bay terrane (formerly Precambrian), northern Victoria Land, Antarctica , 1984 .

[7]  Zhang Jinlin,et al.  Cambrian-Ordovician boundary sections and the proposed candidates for stratotype in north and northeast China , 1984 .

[8]  K. D. Corbett.  1984/84. Geological maps and summary of the Cambrian stratigraphic units and relationships in the Henty River - Williamsford area , 1984 .

[9]  Lu Yanhao,et al.  Cambro-Ordovician trilobites from eastern Guizhou , 1983 .

[10]  J. Jago.  Late Cambrian fossils from the Climie Formation, westernTasmania , 1978 .

[11]  R. Halley,et al.  Systematics, environment, and biogeography of some Late Cambrian and Early Ordovician trilobites from eastern New York State , 1974 .

[12]  P. J. Jones,et al.  Late Cambrian and early Ordovician stages in Western Queensland , 1971 .

[13]  S. Longacre.  Trilobites of the Upper Cambrian Ptychaspid Biomere Wilberns Formation, Central Texas , 1970, Journal of Paleontology.

[14]  D. Winston,et al.  LATE CAMBRIAN AND EARLY ORDOVICIAN FAUNAS FROM THE WILBERNS FORMATION OF CENTRAL TEXAS , 1967 .