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Late Silurian cephalopods from Langkawi, Malaysia, with peri-Gondwanan faunal affinity

Nine species of late Pridoli (latest Silurian) orthocerid cephalopods are described from the Upper Setul Limestone of Pulau Langgun, Langkawi Islands, Malaysia. These are the orthoceratids Michelinoceras (Michelinoceras) cf. michelini (Barrande, 1866), Michelinoceras? sp., Kopaninoceras setulense sp...

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Main Authors: Niko, Shuji, Sone, Masatoshi, Leman, Mohd Shafeea
Format: Article
Published: Taylor & Francis 2018
Subjects:
Q Science (General)
QE Geology
Online Access:http://eprints.um.edu.my/21124/
https://doi.org/10.1080/14772019.2017.1316322
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spelling my.um.eprints.211242019-05-07T02:12:12Z http://eprints.um.edu.my/21124/ Late Silurian cephalopods from Langkawi, Malaysia, with peri-Gondwanan faunal affinity Niko, Shuji Sone, Masatoshi Leman, Mohd Shafeea Q Science (General) QE Geology Nine species of late Pridoli (latest Silurian) orthocerid cephalopods are described from the Upper Setul Limestone of Pulau Langgun, Langkawi Islands, Malaysia. These are the orthoceratids Michelinoceras (Michelinoceras) cf. michelini (Barrande, 1866), Michelinoceras? sp., Kopaninoceras setulense sp. nov., Mimogeisonoceras? langgunense sp. nov., Kionoceras? sp. and Orthocycloceras sp.; the arionoceratids Arionoceras mahsuri sp. nov. and Caliceras mempelamense sp. nov.; and the geisonoceratid Murchisoniceras? sp. This is the first detailed record with taxonomic descriptions of Silurian cephalopods from Southeast Asia. The assemblage belongs to the newly defined Kopaninoceras Fauna that is interpreted to have been widely distributed along the northern (African to Asian) margin of Gondwana and around the Prototethys Ocean during the late Silurian. The Kopaninoceras Fauna includes a local assemblage from the Kurosegawa Belt of south-west Japan, which possibly represents its northernmost occurrence. The distribution of the Kopaninoceras Fauna implies that the cephalopod faunas of Kazakhstan and adjacent areas in Central Asia have closer affinities with peri-Gondwanan faunas than with Baltica or Siberia, corroborating conclusions drawn by earlier researchers based on the benthic faunas. http://zoobank.org/urn:lsid:zoobank.org:pub:DDE20872-C142-4B78-B5F2-2E604C3C8689. Taylor & Francis 2018 Article PeerReviewed Niko, Shuji and Sone, Masatoshi and Leman, Mohd Shafeea (2018) Late Silurian cephalopods from Langkawi, Malaysia, with peri-Gondwanan faunal affinity. Journal of Systematic Palaeontology, 16 (7). pp. 595-610. ISSN 1477-2019 https://doi.org/10.1080/14772019.2017.1316322 doi:10.1080/14772019.2017.1316322
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
QE Geology
spellingShingle Q Science (General)
QE Geology
Niko, Shuji
Sone, Masatoshi
Leman, Mohd Shafeea
Late Silurian cephalopods from Langkawi, Malaysia, with peri-Gondwanan faunal affinity
description Nine species of late Pridoli (latest Silurian) orthocerid cephalopods are described from the Upper Setul Limestone of Pulau Langgun, Langkawi Islands, Malaysia. These are the orthoceratids Michelinoceras (Michelinoceras) cf. michelini (Barrande, 1866), Michelinoceras? sp., Kopaninoceras setulense sp. nov., Mimogeisonoceras? langgunense sp. nov., Kionoceras? sp. and Orthocycloceras sp.; the arionoceratids Arionoceras mahsuri sp. nov. and Caliceras mempelamense sp. nov.; and the geisonoceratid Murchisoniceras? sp. This is the first detailed record with taxonomic descriptions of Silurian cephalopods from Southeast Asia. The assemblage belongs to the newly defined Kopaninoceras Fauna that is interpreted to have been widely distributed along the northern (African to Asian) margin of Gondwana and around the Prototethys Ocean during the late Silurian. The Kopaninoceras Fauna includes a local assemblage from the Kurosegawa Belt of south-west Japan, which possibly represents its northernmost occurrence. The distribution of the Kopaninoceras Fauna implies that the cephalopod faunas of Kazakhstan and adjacent areas in Central Asia have closer affinities with peri-Gondwanan faunas than with Baltica or Siberia, corroborating conclusions drawn by earlier researchers based on the benthic faunas. http://zoobank.org/urn:lsid:zoobank.org:pub:DDE20872-C142-4B78-B5F2-2E604C3C8689.
format Article
author Niko, Shuji
Sone, Masatoshi
Leman, Mohd Shafeea
author_facet Niko, Shuji
Sone, Masatoshi
Leman, Mohd Shafeea
author_sort Niko, Shuji
title Late Silurian cephalopods from Langkawi, Malaysia, with peri-Gondwanan faunal affinity
title_short Late Silurian cephalopods from Langkawi, Malaysia, with peri-Gondwanan faunal affinity
title_full Late Silurian cephalopods from Langkawi, Malaysia, with peri-Gondwanan faunal affinity
title_fullStr Late Silurian cephalopods from Langkawi, Malaysia, with peri-Gondwanan faunal affinity
title_full_unstemmed Late Silurian cephalopods from Langkawi, Malaysia, with peri-Gondwanan faunal affinity
title_sort late silurian cephalopods from langkawi, malaysia, with peri-gondwanan faunal affinity
publisher Taylor & Francis
publishDate 2018
url http://eprints.um.edu.my/21124/
https://doi.org/10.1080/14772019.2017.1316322
_version_ 1643691472878305280
score 13.211869

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