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Integrated Radiolarian and Conodont Biostratigraphy of the Middle to Late Permian Linghao Formation in Northwestern Guangxi, South China
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AbstractThe Permian radiolarian zones and their correlations with conodont zones or other chronostratigraphic schemes are still under debate. In this study, four genera, 21 species and two subspecies of radiolarians together with one genus and six species of conodonts were recovered from the Linghao Formation cropping out at the Longwangpo (LWP) section, northwestern Guangxi, South China. Six radiolarian interval zones and one abundance zone are recognized in the section, namely in ascending order, theFollicucullus scholasticus, Albaillella cavitata, A. protolevis, A. levis, A. excelsa, A. triangularisInterval zones andA. yaoiAbundance Zone. They are correlated with theClarkina dukouensis, C. guangyuanensisandC. orientalisconodont zones recognized at the same section. Based on our data, theF. scholasticusInterval Zone and the lowermost part ofA. cavitataInterval Zone are recognized to be upper Capitanian age, whereas the fourAlbaillellaInterval zones are of Lopingian age (Wuchiapingian to the late Changhsingian). Two previously known Changhsingian radiolarian zones, namely theA. triangularisandA. yaoiInterval zones, should be extended down to the uppermost Wuchiapingian in this studied section.
Title: Integrated Radiolarian and Conodont Biostratigraphy of the Middle to Late Permian Linghao Formation in Northwestern Guangxi, South China
Description:
AbstractThe Permian radiolarian zones and their correlations with conodont zones or other chronostratigraphic schemes are still under debate.
In this study, four genera, 21 species and two subspecies of radiolarians together with one genus and six species of conodonts were recovered from the Linghao Formation cropping out at the Longwangpo (LWP) section, northwestern Guangxi, South China.
Six radiolarian interval zones and one abundance zone are recognized in the section, namely in ascending order, theFollicucullus scholasticus, Albaillella cavitata, A.
protolevis, A.
levis, A.
excelsa, A.
triangularisInterval zones andA.
yaoiAbundance Zone.
They are correlated with theClarkina dukouensis, C.
guangyuanensisandC.
orientalisconodont zones recognized at the same section.
Based on our data, theF.
scholasticusInterval Zone and the lowermost part ofA.
cavitataInterval Zone are recognized to be upper Capitanian age, whereas the fourAlbaillellaInterval zones are of Lopingian age (Wuchiapingian to the late Changhsingian).
Two previously known Changhsingian radiolarian zones, namely theA.
triangularisandA.
yaoiInterval zones, should be extended down to the uppermost Wuchiapingian in this studied section.
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