scholarly journals Recovery brachiopod associations from the lower Silurian of South China and their paleoecological implications

2016 ◽  
Vol 53 (7) ◽  
pp. 674-679 ◽  
Author(s):  
Bing Huang ◽  
Ren-Bin Zhan ◽  
Guang-Xu Wang
Keyword(s):  
Network Analysis ◽  
South China ◽  
Mass Extinction ◽  
Principal Component ◽  
Guizhou Province ◽  
Upward Trend ◽  
Lower Silurian ◽  
Brachiopod Fauna ◽  
And Cluster Analysis ◽  
Paleoenvironmental Analysis

A recovery brachiopod fauna occurs in the lower Niuchang Formation (upper Rhuddanian – lower Aeronian, Llandovery) of the Xinglongchang section, Meitan County, northern Guizhou Province, South China. Nine collections were made at the section, all of which are dominated by brachiopods, and three associations are recognized here and their paleoecology is discussed. Paleoenvironmental analysis shows a shallowing upward trend for the lower Niuchang Formation, although a global transgression was happening at that time. The balance between the global transgression and the regional Qianzhong Uplift guaranteed a stable environment for the formation of the Niuchang Formation and the recovery of brachiopods in South China after the end-Ordovician mass extinction. In addition to the traditional methods of principal component analysis and cluster analysis, a relatively new technique to paleontology, “network analysis”, is applied successfully in this study. It is suggested that network analysis could be used as one of the supporting methods in investigating brachiopod paleoecology.

A new survivor species of Dicoelosia (Brachiopoda) from Rhuddanian (Silurian) shallower-water biofacies in South China

2013 ◽  
Vol 87 (2) ◽  
pp. 232-242 ◽  
Author(s):  
Bing Huang ◽  
Jia-Yu Rong ◽  
David A. T. Harper
Keyword(s):  
Population Structure ◽  
Shallow Water ◽  
South China ◽  
Deep Water ◽  
Mass Extinction ◽  
Guizhou Province ◽  
Geological History ◽  
Biotic Crisis ◽  
Abundance And Diversity ◽  
A New Species

The brachiopod genus Dicoelosia is generally considered a typical deep-water taxon. New data suggest that some species of the genus may have invaded relatively shallow-water habitats during its geological history. However, there is scant evidence for its invasion of shallow-water environments after the terminal Ordovician mass extinction. Dicoelosia occurs in the shallower-water benthic shelly assemblages of the lower Niuchang Formation (upper Rhuddanian, Llandovery) of Meitan County, northern Guizhou Province, South China. Evidence of a move to shallow water includes its morphology and population structure, regional paleogeography, sedimentology, together with the abundance and diversity of its shallow-water associates. Following the biotic crisis, deep-water environments were barely habitable, and may have driven Dicoelosia into shallower-water niches. The taxon endured the less suitable shallow-water environments until the deep-water benthic zones ameliorated after the recovery, implying a shallow-water refugium existed after the biotic crisis. A new species Dicoelosia cathaysiensis is erected herein. There is only one record of this genus in South China and this unique occurrence may reflect the distinctive paleobiogeography and environments of this region.

A new Griesbachian–Dienerian (Induan, Early Triassic) ammonoid fauna from Gujiao, South China

2018 ◽  
Vol 93 (1) ◽  
pp. 48-71 ◽  
Author(s):  
Xu Dai ◽  
Haijun Song ◽  
Arnaud Brayard ◽  
David Ware
Keyword(s):  
South China ◽  
Mass Extinction ◽  
Guizhou Province ◽  
Early Triassic ◽  
Taxonomic Richness ◽  
Chronological Order ◽  
Ammonoid Fauna ◽  
High Level ◽  
First Time ◽  
One New Species

AbstractBed-by-bed sampling of the lower portion of the Daye Formation at Gujiao, Guizhou Province, South China, yielded new Griesbachian–Dienerian (Induan, Early Triassic) ammonoid faunas showing a new regional Induan ammonoid succession. This biostratigraphic scheme includes in chronological order the late GriesbachianOphiceras mediumandJieshaniceras guizhouensebeds, and the middle DienerianAmbites radiatusbed. The latter is recognized for the first time as a separate biozone in South China. Eight genera and 13 species are identified, including one new species,Mullericeras gujiaoensen. sp. The new data show that a relatively high level of ammonoid taxonomic richness occurred rather rapidly after the Permian/Triassic mass extinction in the late Griesbachian, echoing similar observations in other basins, such as in the Northern Indian Margin.UUID:http://zoobank.org/a24a3387-f3dd-4da4-a134-84372352a63d

Origin and enrichment factors of natural gas from the Lower Silurian Songkan Formation in northern Guizhou province, south China

2018 ◽  
Vol 187 ◽  
pp. 20-29 ◽  
Author(s):  
Yang Liu ◽  
Jinchuan Zhang ◽  
Peng Zhang ◽  
Ziyi Liu ◽  
Panwang Zhao ◽  
...  
Keyword(s):  
Natural Gas ◽  
South China ◽  
Enrichment Factors ◽  
Guizhou Province ◽  
Lower Silurian

scholarly journals A nearshore Hirnantian brachiopod fauna from South China and its ecological significance

2019 ◽  
Vol 94 (2) ◽  
pp. 239-254 ◽  
Author(s):  
Bing Huang ◽  
Jiayu Rong ◽  
David A.T. Harper ◽  
Hanghang Zhou
Keyword(s):  
South China ◽  
Population Analysis ◽  
Principal Component ◽  
Sensu Stricto ◽  
Nominal Species ◽  
Ecological Significance ◽  
Benthic Assemblage ◽  
The World ◽  
Brachiopod Fauna ◽  
A New Species

AbstractThe brachiopods collected from the Kuanyinchiao Beds (Hirnantian, uppermost Ordovician) in Meitan and Zunyi counties, northern Guizhou, include 13 species and one undetermined taxon, dominated by Hirnantia sagittifera (M'Coy, 1851) (which accounts for over one-third of the specimens), together with common Eostropheodonta hirnantensis (M'Coy, 1851). They are assigned to the Hirnantia–Eostropheodonta Community, which probably inhabited a shallow-water, nearshore Benthic Assemblage (BA) 2 to upper BA 3 environment. Population analysis shows that the community was well adapted to this environment after the first phase of the end-Ordovician mass extinction. Representative specimens of all the species are illustrated, and a new species, Minutomena missa, is described herein. The variation in Hirnantia sagittifera was noted in many of previous studies but was not statistically evidenced. Here we have measured representative specimens of that famous species from the major paleoplates and terranes in the world, along with other species assigned to the genus from South China. Having used principal component analysis (PCA), significant variations in the species are documented statistically and revised, and three nominal species, one subspecies, and two morphotypes are now reassigned to Hirnantia sagittifera sensu stricto.UUID: http://zoobank.org/references/3f83fb1e-a6dd-4585-9f9f-9586dad28244

Onshore migration of a deep-water brachiopod fauna from the Lower Ordovician Tonggao Formation, Jiangnan Slope, southeastern Guizhou Province, South ChinaThis article is one of a series of papers published in this Special Issue on the theme The dynamic reef and shelly communities of the Paleozoic. This Special is in honour of our colleague and friend Paul Copper.

2008 ◽  
Vol 45 (2) ◽  
pp. 141-157 ◽  
Author(s):  
Renbin Zhan ◽  
Jisuo Jin
Keyword(s):  
South China ◽  
Deep Water ◽  
Community Organization ◽  
Guizhou Province ◽  
Yangtze Platform ◽  
Shell Size ◽  
Lower Ordovician ◽  
The Common ◽  
Brachiopod Fauna ◽  
Water Facies

Brachiopods from the lower Tonggao Formation (Floian, late Early Ordovician) of Sandu, southeastern Guizhou Province, represent a deep-water benthic shelly fauna from the Jiangnan Slope facies of the South China paleoplate. The fauna contains 16 brachiopod taxa, with orthides, lingulates, and pentamerides being the common groups. Concurrent graptolites confine the brachiopod fauna to the Tetragraptus approximatus and the Acrograptus filiformis biozones (early Floian). The first appearance datum (FAD) of several brachiopod genera, such as Paralenorthis , Protoskenidioides , and Nereidella , in the Sandu slope facies is one or two graptolitic biozones lower than their FAD in shallower water facies on the Yangtze Platform. Later in the late Floian, these genera became major components of the Sinorthis fauna that flourished over much of the Yangtze Platform, suggesting a migration of the benthic shelly fauna from slope to platform facies during the Floian radiation in South China. Compared to the platform fauna, the deep-water brachiopod fauna of the Sandu area has a lower level of richness, diversity, and community organization. Three brachiopod associations are recognized: the Paralenorthis–Nereidella, the Palaeoglossa longa , and the Lingulella –Protoskenidioides associations. An upsection decrease in shell size, faunal richness, and species diversity in the Tonggao Formation indicate a deteriorating environment towards hypersalinity in the Sandu area, resulting in the ultimate disappearance of the deep-water brachiopod fauna.

Earliest Wuchiapingian (Lopingian, late Permian) brachiopods in southern Hunan, South China: implications for the pre-Lopingian crisis and onset of Lopingian recovery/radiation

2008 ◽  
Vol 82 (5) ◽  
pp. 924-937 ◽  
Author(s):  
Shu-Zhong Shen ◽  
Yi-Chun Zhang
Keyword(s):  
New Taxa ◽  
South China ◽  
Mass Extinction ◽  
Pronounced Effect ◽  
Late Permian ◽  
Crisis Period ◽  
Ammonoid Fauna ◽  
Southern Hunan ◽  
Brachiopod Fauna

The uppermost 5–15 m of the Douling Formation in the southern Hunan area, South China, yields a diverse fauna comprised of ammonoids, bivalves, and brachiopods. The brachiopods reported in this paper consist of 51 species in 34 genera and are dominated by the Lopingian (Late Permian) species associated with a few species persisting from the underlying Maokouan (Late Guadalupian). This fauna is of earliest Wuchiapingian in age as precisely constrained by the associated conodontClarkina postbitteri postbitteriand the Guadalupian-type ammonoid fauna of theRoadoceras-DoulingocerasZone in the brachiopod horizon. The discovery of the Lopingian species-dominated brachiopod fauna in the earliest Wuchiapingian in southern Hunan suggests a much less pronounced effect of the pre-Lopingian crisis (end-Guadalupian mass extinction) than the end-Changhsingian mass extinction in terms of brachiopods, a contemporaneous onset of the Lopingian recovery/radiation during the pre-Lopingian crisis period, and taxonomic selectivity of the pre-Lopingian crisis in terms of different fossil groups. New taxa areEchinauris doulingensisn. sp.,Pararigbyella quadrilobatan. gen. and n. sp. andP. doulingensisn. gen. and n. sp.

Sign in / Sign up

Export Citation Format

Share Document