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Griesbachian and Dienerian (Early Triassic) ammonoids from northwestern Guangxi and southern Guizhou


Brühwiler, T; Brayard, A; Bucher, H U; Guodun, K (2008). Griesbachian and Dienerian (Early Triassic) ammonoids from northwestern Guangxi and southern Guizhou. Palaeontology, 51(5):1151-1180.

Abstract

Intensive sampling of the Luolou (northwestern Guangxi) and the Daye (southern Guizhou) Formations in South China leads to the recognition of a regional Griesbachian and Dienerian ammonoid succession for this key palaeobiogeographical area. The new biostratigraphical sequence comprises the upper Griesbachian 'Ophiceras beds' and the lower Dienerian 'Proptychites candidus beds', which are separated from the uppermost Dienerian 'Clypites beds' by an unfossiliferous interval. These faunas contain some taxa with wide geographic distribution (e.g. Ambites, Pleurambites, Pleurogyronites, Proptychites candidus), thus facilitating correlation with faunal successions from other regions (i.e. British Columbia, Canadian Arctic, Himalayas and South Primorye). Two new genera (Jieshaniceras and Shangganites) and three new species (Anotoceras subtabulatus, Pleurambites radiatus and Shangganites shangganense) are described.

Abstract

Intensive sampling of the Luolou (northwestern Guangxi) and the Daye (southern Guizhou) Formations in South China leads to the recognition of a regional Griesbachian and Dienerian ammonoid succession for this key palaeobiogeographical area. The new biostratigraphical sequence comprises the upper Griesbachian 'Ophiceras beds' and the lower Dienerian 'Proptychites candidus beds', which are separated from the uppermost Dienerian 'Clypites beds' by an unfossiliferous interval. These faunas contain some taxa with wide geographic distribution (e.g. Ambites, Pleurambites, Pleurogyronites, Proptychites candidus), thus facilitating correlation with faunal successions from other regions (i.e. British Columbia, Canadian Arctic, Himalayas and South Primorye). Two new genera (Jieshaniceras and Shangganites) and three new species (Anotoceras subtabulatus, Pleurambites radiatus and Shangganites shangganense) are described.

Citations

21 citations in Web of Science®
21 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Paleontological Institute and Museum
Dewey Decimal Classification:560 Fossils & prehistoric life
Language:English
Date:26 September 2008
Deposited On:09 Dec 2008 10:20
Last Modified:05 Apr 2016 12:39
Publisher:Wiley-Blackwell
ISSN:0031-0239
Publisher DOI:https://doi.org/10.1111/j.1475-4983.2008.00796.x

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