Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/29213
72 Visitors
84 Hits
0 Downloads
- Title
- Early Ordovician (Bendigonian) conodonts from central New South Wales, Australia
- Related
- Australian Conodont Symposium (2nd : 2000) (3 - 7 July 2000 : Orange, NSW)
- Related
- Mawson, Ruth and Talent, John A.. Contributions to the Second Australian Conodont Symposium (AUSCOS II) held in conjunction with Palaeontology DownUnder-2000, p.39-73
- Related
- Courier Forschungsinstitut Senkenberg 245
- Publisher
- Stuttgart : E. Schweizerbart'sche Verlagsbuchhandlung
- Date
- 2003
- Author/Creator
- Zhen, Yong-yi
- Author/Creator
- Percival, Ian G
- Author/Creator
- Webby, Barry D
- Description
- The first Early Ordovician conodont fauna records from central New South Wales, comprising 16 species (belonging to 14 genera), is described and illustrated. The fauna occurs in laminated calcareous siltstones and allochthonous limestones of the Hensleigh Siltstone, south of Wellington. Both lithologies are interpreted as having been deposited in a lower slope graptolotoc siltstone facies. Worldwide correlation of the conodont fauna points to an age equivalent to the upper P. elegans Zone of the North Atlantic succession or O. communis Zone of the North American Midcontinental succession, according well with the late Bendigonian age determined from graptolits in overlaying beds of the Hensleigh Siltstone. Juanognathus variabilis (32% of total elements), Acodus comptus (19%), Bergstroemognathus extensus (14%, Drepanodus arcuatus (7%), Reutterodus andinus (6%) and Acodus sweeto (6%) dominate the assemblage, which is comprised of cosmopolitan, aw well as so-called “cooler water”, species; with one exception, typical shallow “warm water” forms are lacking. Beyond the Australian region of low –latitude, East Gondwana, the New South Wales fauna is most closely correlated with faunas from the Argentine Precordillera and South China. Strong similarities also are apparent between the Hensleigh conodont assemblage and deeper water, low-latitude faunas from platform margin or slope settings of eastern North America, as well as those from the western margins of the North China block. The Hensleigh conodont fauna represents a deeper water assemblage that formed on the west side of the Palaeo-Pacific Ocean, beyond the margin of East Gondwana.
- Description
- 35 page(s)
- Subject Keyword
- conodonts
- Subject Keyword
- Early Ordovician
- Subject Keyword
- biostratigraphy
- Subject Keyword
- biogeography
- Subject Keyword
- Australia
- Resource Type
- conference paper
- Organisation
- Macquarie University. Dept. of Earth and Planetary Sciences
- Identifier
- http://hdl.handle.net/1959.14/29213
- Identifier
- ISBN:3510613627
- Identifier
- ISSN:0341-4116
- Identifier
- mq-rm-2003018193
- Language
- eng
- Reviewed
List Of Titles
