Biostratigraphy and paleobiogeography of Middle and Late Ordovician conodonts from the Langkawi Islands, northwestern peninsular Malaysia
The Middle and Upper Ordovician sequence of the Langkawi Islands, northwestern peninsular Malaysia, contains 20 species of conodonts belonging to 15 genera and four unidentified species, which are described and illustrated. The following four biostratigraphic zones are established for the study area...
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crcambridgeupr:10.1666/07-058.1 2024-06-23T07:55:06+00:00 Biostratigraphy and paleobiogeography of Middle and Late Ordovician conodonts from the Langkawi Islands, northwestern peninsular Malaysia Agematsu, Sachiko Sashida, Katsuo Ibrahim, Amnan B. 2008 http://dx.doi.org/10.1666/07-058.1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000055141 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of Paleontology volume 82, issue 5, page 957-973 ISSN 0022-3360 1937-2337 journal-article 2008 crcambridgeupr https://doi.org/10.1666/07-058.1 2024-06-05T04:03:48Z The Middle and Upper Ordovician sequence of the Langkawi Islands, northwestern peninsular Malaysia, contains 20 species of conodonts belonging to 15 genera and four unidentified species, which are described and illustrated. The following four biostratigraphic zones are established for the study area: the Scolopodus striatus assemblage zone, the Periodon sp. A range zone, the Baltoniodus alobatus range zone, and the Hamarodus europaeus range zone, in ascending order. The Middle Ordovician fauna belongs to the low-latitude, warm-water Australian Province. Conodonts of the H. europaeus zone represent the HDS ( Hamarodus europaeus-Dapsilodus mutatus-Scabbardella altipes ) biofacies, which has been reported from the cool-water North Atlantic Faunal Region. The middle Arenigian limestones in the study area were deposited on a shallow-water shelf, whereas the late Arenigian to middle Darriwilian limestones formed in hemipelagic deeper-water conditions on an outer shelf or slope. Article in Journal/Newspaper North Atlantic Cambridge University Press Journal of Paleontology 82 5 957 973 |
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Open Polar |
collection |
Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
The Middle and Upper Ordovician sequence of the Langkawi Islands, northwestern peninsular Malaysia, contains 20 species of conodonts belonging to 15 genera and four unidentified species, which are described and illustrated. The following four biostratigraphic zones are established for the study area: the Scolopodus striatus assemblage zone, the Periodon sp. A range zone, the Baltoniodus alobatus range zone, and the Hamarodus europaeus range zone, in ascending order. The Middle Ordovician fauna belongs to the low-latitude, warm-water Australian Province. Conodonts of the H. europaeus zone represent the HDS ( Hamarodus europaeus-Dapsilodus mutatus-Scabbardella altipes ) biofacies, which has been reported from the cool-water North Atlantic Faunal Region. The middle Arenigian limestones in the study area were deposited on a shallow-water shelf, whereas the late Arenigian to middle Darriwilian limestones formed in hemipelagic deeper-water conditions on an outer shelf or slope. |
format |
Article in Journal/Newspaper |
author |
Agematsu, Sachiko Sashida, Katsuo Ibrahim, Amnan B. |
spellingShingle |
Agematsu, Sachiko Sashida, Katsuo Ibrahim, Amnan B. Biostratigraphy and paleobiogeography of Middle and Late Ordovician conodonts from the Langkawi Islands, northwestern peninsular Malaysia |
author_facet |
Agematsu, Sachiko Sashida, Katsuo Ibrahim, Amnan B. |
author_sort |
Agematsu, Sachiko |
title |
Biostratigraphy and paleobiogeography of Middle and Late Ordovician conodonts from the Langkawi Islands, northwestern peninsular Malaysia |
title_short |
Biostratigraphy and paleobiogeography of Middle and Late Ordovician conodonts from the Langkawi Islands, northwestern peninsular Malaysia |
title_full |
Biostratigraphy and paleobiogeography of Middle and Late Ordovician conodonts from the Langkawi Islands, northwestern peninsular Malaysia |
title_fullStr |
Biostratigraphy and paleobiogeography of Middle and Late Ordovician conodonts from the Langkawi Islands, northwestern peninsular Malaysia |
title_full_unstemmed |
Biostratigraphy and paleobiogeography of Middle and Late Ordovician conodonts from the Langkawi Islands, northwestern peninsular Malaysia |
title_sort |
biostratigraphy and paleobiogeography of middle and late ordovician conodonts from the langkawi islands, northwestern peninsular malaysia |
publisher |
Cambridge University Press (CUP) |
publishDate |
2008 |
url |
http://dx.doi.org/10.1666/07-058.1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000055141 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Journal of Paleontology volume 82, issue 5, page 957-973 ISSN 0022-3360 1937-2337 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1666/07-058.1 |
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Journal of Paleontology |
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82 |
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5 |
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957 |
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973 |
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1802647525776162816 |