Ordovician conodonts from the Mithaka Formation (Georgina Basin, Australia). Regional and paleobiogeographical implications
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Universitat de Barcelona
2005
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| _version_ | 1876482098828673024 |
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| author | T.S. Kuhn |
| author_facet | T.S. Kuhn |
| contents | Ordovician conodonts from the Mithaka Formation (Georgina Basin, Australia). Regional and paleobiogeographical implications T.S. Kuhn C.R. Barnes Ciencias de la Tierra Conodonts Ordovician Georgina Basin Mithaka Formation Palaeobiogeography The systematic analysis of conodonts from the previously unstudied Mithaka Formation (Georgina Basin) yielded1366 identifiable elements, representing 25 species and 21 genera. One new species was recovered and identified,Triangulodus mithakensis n. sp. Four other new species are described in open nomenclature as Bergstroemognathus?n. sp. A, ?Periodon n. sp. A, Phragmodus n. sp. A and Taoqupognathus n. sp. A. The Mithaka Fmfauna shows similarity with conodonts from several previous Australian studies and lesser similarity with conodontsfrom North China and North America. Some species of North American Midcontinent (LaurentianProvince) affinity include Erismodus quadridactylus (STAUFFER) and Staufferella divisa SWEET, whereas somespecies of North Chinese affinity include Aurilobodus leptosomatus AN, Panderodus nogamii (LEE) and ?Serratognathussp. However, many species are distinctly Australian: Bergstroemognathus? n. sp. A, ?Periodon n.sp. A, Phragmodus n. sp. A, Drucognathus yiranus ZHANG, BARNES and COOPER, Erismodus nicolli ZHANG,BARNES and COOPER, Yaoxianognathus? neonychodonta ZHANG, BARNES and COOPER, Triangulodus mithakensis n.sp. and Taoqupognathus n. sp. A. These Australian species support the placement of the Mithaka Fm faunawithin the proposed Australian Province. This new conodont fauna is correlated to the early Late Ordovicianupper Drucognathus yiranus Zone of the Amadeus Basin, Central Australia and the late Gisbornian Stage. Theconodont fauna indicates a shallow open lagoon depositional environment. 2005 artículo científico 1695-6133 https://www.redalyc.org/articulo.oa?id=50530403 en http://www.redalyc.org/revista.oa?id=505 Geologica Acta: an international earth science journal application/pdf Universitat de Barcelona Geologica Acta: an international earth science journal (España) Num.4 Vol.3 |
| format | Artículo científico |
| id | redalyc_50530403 |
| institution | Redalyc |
| language | en |
| publishDate | 2005 |
| publisher | Universitat de Barcelona |
| spellingShingle | Ordovician conodonts from the Mithaka Formation (Georgina Basin, Australia). Regional and paleobiogeographical implications T.S. Kuhn Ciencias de la Tierra Conodonts Ordovician Georgina Basin Mithaka Formation Palaeobiogeography Ordovician conodonts from the Mithaka Formation (Georgina Basin, Australia). Regional and paleobiogeographical implications T.S. Kuhn C.R. Barnes Ciencias de la Tierra Conodonts Ordovician Georgina Basin Mithaka Formation Palaeobiogeography The systematic analysis of conodonts from the previously unstudied Mithaka Formation (Georgina Basin) yielded1366 identifiable elements, representing 25 species and 21 genera. One new species was recovered and identified,Triangulodus mithakensis n. sp. Four other new species are described in open nomenclature as Bergstroemognathus?n. sp. A, ?Periodon n. sp. A, Phragmodus n. sp. A and Taoqupognathus n. sp. A. The Mithaka Fmfauna shows similarity with conodonts from several previous Australian studies and lesser similarity with conodontsfrom North China and North America. Some species of North American Midcontinent (LaurentianProvince) affinity include Erismodus quadridactylus (STAUFFER) and Staufferella divisa SWEET, whereas somespecies of North Chinese affinity include Aurilobodus leptosomatus AN, Panderodus nogamii (LEE) and ?Serratognathussp. However, many species are distinctly Australian: Bergstroemognathus? n. sp. A, ?Periodon n.sp. A, Phragmodus n. sp. A, Drucognathus yiranus ZHANG, BARNES and COOPER, Erismodus nicolli ZHANG,BARNES and COOPER, Yaoxianognathus? neonychodonta ZHANG, BARNES and COOPER, Triangulodus mithakensis n.sp. and Taoqupognathus n. sp. A. These Australian species support the placement of the Mithaka Fm faunawithin the proposed Australian Province. This new conodont fauna is correlated to the early Late Ordovicianupper Drucognathus yiranus Zone of the Amadeus Basin, Central Australia and the late Gisbornian Stage. Theconodont fauna indicates a shallow open lagoon depositional environment. 2005 artículo científico 1695-6133 https://www.redalyc.org/articulo.oa?id=50530403 en http://www.redalyc.org/revista.oa?id=505 Geologica Acta: an international earth science journal application/pdf Universitat de Barcelona Geologica Acta: an international earth science journal (España) Num.4 Vol.3 |
| title | Ordovician conodonts from the Mithaka Formation (Georgina Basin, Australia). Regional and paleobiogeographical implications |
| topic | Ciencias de la Tierra Conodonts Ordovician Georgina Basin Mithaka Formation Palaeobiogeography |
| url | https://www.redalyc.org/articulo.oa?id=50530403 |