Tremadoc faunas from the Carmarthen district, South Wales

Owens, Robert M.; Fortey, Richard A.; Cope, John C. W.; Rushton, A. W. A.; Bassett, Michael G.

doi:10.1017/s0016756800025632

Cited by 56 publications

(38 citation statements)

References 29 publications

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“…Isolated fragments and partial specimens of protospongioids are widely known from the Tremadocian (Owens et al 1982;Esteban and Rigby 1998), but few describable taxa have been reported. The only diverse assemblages to date are those from Little Métis, Quebec (Dawson 1896;Dawson and Hinde 1889), which is of uncertain age within the late Cambrian-Early Ordovician interval (interpreted as Late Cambrian by Finks and Rigby 2004b but as Late Tremadocian by Carrera and Rigby 2004), and the Tremadocian-Floian Fezouata Biota of Morocco (Botting 2007a;Van Roy et al 2010), which is currently under study.…”

Section: Introductionmentioning

confidence: 99%

Middle Cambrian sponges from the Drum Mountains and House Range in western Utah

Rigby

Church²,

Anderson

2010

J. Paleontol.

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A diverse assemblage of Middle Cambrian sponges, recently collected from the Wheeler and Marjum Formations of western Millard County, Utah, includes a variety of demosponges and hexactinellids. This collection includes the verongiid Vauxia bellula Walcott, 1920, and the protomonaxonids Choia carteri and Choia ridleyi Walcott, 1920, Hamptonia bowerbanki Walcott, 1920, and Hamptonia parva n. sp. Hexactinellids in the collection include the reticulosid protospongioids Diagoniella hindei Walcott, 1920, and Diagoniella magna n. sp.; the dierespongioid hydnodictyid Valospongia? gigantus Rigby, 1973; and the hintzespongioid Hintzespongia bilamina Rigby and Gutschick, 1976. A specimen of the problematic Sentinelia? draco Walcott, 1920, is also documented as part of the collection.

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Section: Introductionmentioning

confidence: 99%

Middle Cambrian sponges from the Drum Mountains and House Range in western Utah

Rigby

Church²,

Anderson

2010

J. Paleontol.

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“…It has a better developed cephalic border than other species, apart from those of L. turgidulus Harrington and Leanza, 1957 and L. aff. turgidulus of Owens et al (1982). The pygidial border of L. inletensis is similar to that of L. erraticus, but not as wide as that of L. bexelli.…”

Section: Plate 1 ®Gures 1±7mentioning

confidence: 78%

“…21, 1a) and L. aff. turgidulus illustrated by Owens et al (1982). In addition, the cephalon of the enrolled holotype of the type species, L. erraticus, as illustrated by Ahlberg (1988, ®g. 2), has a narrow cephalic border, at least posterolaterally.…”

Section: A T E R I a L A N D M E T H O D Smentioning

confidence: 92%

Late Late Cambrian Trilobites From Near Birch Inlet, South‐Western Tasmania

Bao

Jago

2000

Palaeontology

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ABSTRACT. The ®rst late Late Cambrian basinal-facies trilobites to be described from Tasmania are from a succession exposed 8´5 km west of Birch Inlet, south-western Tasmania. Twenty-one taxa are described; the six agnostoid species include a new species of Leiagnostus, L. inletensis. The polymeroids include ®ve new species: Hedinaspis uniformis, Proceratopyge longa, Niobella birchensis, Skljarella expansa and Ivshinaspis reticulata. Skljarella and Ivshinaspis are described for the ®rst time from Australia. The specimens are preserved in siltstone belonging to a basinal facies; the fauna has more in common with those of the South-East China Faunal Province than with the shallow-water carbonatefacies faunas from northern Australia. The fauna is of late Late Cambrian age (Payntonian±earliest Datsonian) on the north Australian biostratigraphic scale. The Birch Inlet fauna is correlated with those of the Siyangshan Formation of Zhejiang, the Guoziguonen Formation of Xinjiang and the Shengjiawan Formation of Hunan. There are similarities with late Late Cambrian faunas from Nevada, Kazakhstan and New Zealand.

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“…List of the trilobite genera of the Uralian border of Baltica (Weber 1948;Bondarev et al 1965;Burskiy 1966Burskiy , 1970Varganov et al 1973;Antsygin 1977Antsygin , 1978Antsygin , 1991Antsygin , 1993Antsygin , 2001Antsygin et al 1977;Klyuzhina 1985;Puchkov 1991; shown with distribution on the other terranes. Main references to the faunas reviewed from different areas are as follows: Baltoscandia (Tjernvik 1956;Henningsmoen 1957;Ebbestad 1999;Żylińska 2002;Terfelt et al 2011;Pärnaste et al 2009, Argentina plus Bolivia (Robison & Pantoja-Alor 1968;Přibyl & Vaněk 1980;Waisfeld & Vaccari 2003;Tortello & Esteban 2007;Balseiro & Marengo 2008;Vaccari & Waisfeld 2008), Avalonia (Owens et al 1982;Fortey & Owens 1991), Armorica: Iberia (Álvaro et al 2007(Álvaro et al , Hammann et al 2008, Montagne Noir (Vizcaïno et al 2001, Vizcaïno & Álvaro 2003, Shergold et al 2007, Bavaria (Sdzuy et al 2001), Perunica (Mergl 2006), Turkey (Shergold & Sdzuy 1984, Dean 2006, Alborz, Iran (Ghobadi Pour 2006, Ghobadi Pour et al 2007, Bruton et al 2004, South China (Lu 1975;Peng 1990aPeng , 1990bPeng , 1...…”

Section: Karako¾-mikhailovsk Regional Stagementioning

confidence: 99%