Latest Permian deep-water foraminifers from Daxiakou, Hubei, South China

2015 ◽  
Vol 89 (3) ◽  
pp. 448-464 ◽  
Author(s):  
Muhui Zhang ◽  
Songzhu Gu
Keyword(s):  
New Species ◽  
South China ◽  
Deep Water ◽  
Water Environment ◽  
Hubei Province ◽  
Abundance And Diversity

AbstractA latest Changhsingian (latest Permian) foraminiferal fauna composed of 19 species (belonging to 10 genera) was recovered from the Daxiakou section in Xingshan County, Hubei Province, South China. Compared to contemporaneous faunas in South China, the Daxiakou fauna displays unique features: (1) nodosariids are the dominant forms in abundance and diversity; and (2) the most abundant forms have elongate and flattened tests, and include Geinitzina, Howchinella, and Ichthyolaria. The predominance of flattened elongate tests and their smaller size suggest that these foraminifers possibly lived in an oxygen-depleted, deep-water environment. Seven new species, Nodosaria quinquecostata n. sp., Howchinella inflata n. sp., H. hubeiensis n. sp., H. complanata n. sp., H. xiangxiensis n. sp., Ichthyolaria celsa n. sp., and Pseudotristix elongata n. sp. are described.

scholarly journals Latest Permian deep-water ostracods from southwestern Guangxi, South China

2007 ◽  
Vol 26 (2) ◽  
pp. 169-191 ◽  
Author(s):  
Aihua Yuan ◽  
Sylvie Crasquin-Soleau ◽  
Qinglai Feng ◽  
Songzhu Gu
Keyword(s):  
New Species ◽  
South China ◽  
Deep Water ◽  
World Wide ◽  
Pelagic Species ◽  
Two New Species ◽  
First World

Abstract. A very diverse ostracod fauna was discovered in the latest Permian strata of the Dongpan section, southwestern Guangxi, South China. Fifty-one species belonging to twenty-eight genera were identified and described, including two new species (Bairdia dongpanensis n. sp. and Spinomicrocheilinella anterocompressa n. sp). This type of assemblage, with nineteen palaeopsychrospheric species and four pelagic species, is the first world-wide deep-water ostracod fauna reported from the latest Permian strata and the first one recorded in the Permian of China. The palaeoenvironmental analysis allows one to propose an evaluation of the bathymetry variation along the Dongpan section.

scholarly journals Latest Wuchiapingian to Earliest Triassic Conodont Zones and δ13Ccarb Isotope Excursions from Deep-Water Sections in Western Hubei Province, South China

2019 ◽  
Vol 30 (5) ◽  
pp. 1059-1074 ◽  
Author(s):  
Bo Yang ◽  
Hanxiao Li ◽  
Paul B. Wignall ◽  
Haishui Jiang ◽  
Zhijun Niu ◽  
...  
Keyword(s):  
South China ◽  
Deep Water ◽  
Hubei Province ◽  
Western Hubei

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.

scholarly journals A New Cone Shell (Conidae) from the South China Sea

The Festivus ◽  
2019 ◽  
Vol 51 (1) ◽  
pp. 51-54
Author(s):  
Edward Petuch ◽  
David Berschauer
Keyword(s):  
New Species ◽  
South China Sea ◽  
South China ◽  
Deep Water ◽  
The South China Sea ◽  
New Taxon ◽  
The South ◽  
China Sea ◽  
Size And Shape ◽  
A New Species

A new species of the biconic, deep water conid genus Turriconus Shikama and Habe, 1968 has been discovered in the bathyal zones south of the Pratas Islands, South China Sea. This new taxon, Turriconus takahashii new species, superficially resembles T. excelsus (Sowerby III, 1908), both in size and shape and is one of the largest species in the genus Turriconus

A new species of the genus Glyptelasma Pilsbry (Cirripedia, Thoracica, Poecilasmatidae) from deep waters in the South China Sea

Crustaceana ◽  
2014 ◽  
Vol 87 (10) ◽  
pp. 1185-1191
Author(s):  
Zhongli Sha ◽  
Zhongli Sha ◽  
Xianqiu Ren
Keyword(s):  
New Species ◽  
South China Sea ◽  
South China ◽  
Deep Water ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Deep Waters ◽  
The Family ◽  
A New Species

A new species of deep-water barnacle belonging to the family Poecilasmatidae is described from the South China Sea.Glyptelasma dentatumsp. nov. differs from its congeners in having an inwardly projecting tooth on either side of the internal median concavity of the basally expanded margins of the carina. Information on distribution and a key to the world’s species ofGlyptelasmaare provided.

Microphysogobio nudiventris, a new species of gudgeon (Teleostei: Cyprinidae) from the middle Chang-Jiang (Yangtze River) basin, Hubei Province, South China

Zootaxa ◽  
2012 ◽  
Vol 3586 (1) ◽  
pp. 211 ◽  
Author(s):  
ZHONG-GUAN JIANG ◽  
ER-HU GAO ◽  
E ZHANG
Keyword(s):  
New Species ◽  
River Basin ◽  
South China ◽  
Yangtze River ◽  
Yangtze River Basin ◽  
Hubei Province ◽  
The Body ◽  
Pectoral Fin ◽  
Lower Lip ◽  
Distal Edge

Microphysogobio nudiventris, new species, is described from the Du-He, a tributary flowing into the Han-Jiang of themiddle Chang-Jiang (Yangtze River) basin, in Zhushan County, Hubei Province, South China. It belongs in theincompletely scaled group of this genus, but differs from all other species of this group except M. yaluensis, M. rapidus,and M. wulonghensis in the presence of a scaleless midventral region of the body extending more than two-thirds of thedistance from the pectoral-fin insertion to the pelvic-fin insertion. This new species differs from M. yaluensis in theslightly concave or straight distal edge of the dorsal fin, interorbital width, and snout length; from M. rapidus in thenumber of perforated scales on the lateral line and number of pectoral-fin rays, and the placement of the anus; and fromM. wulonghensis in having the two lateral lobes of the lower lip posteromedially disconnected, the shape of the median mental pad of the lower lip, and the number of circumpeduncular scales.

Ordovician (middle Darriwilian-earliest Sandbian) conodonts from the Wuhai area of Inner Mongolia, North China

2015 ◽  
Vol 89 (5) ◽  
pp. 768-790 ◽  
Author(s):  
Xiuchun Jing ◽  
Hongrui Zhou ◽  
Xunlian Wang
Keyword(s):  
South China ◽  
Deep Water ◽  
Inner Mongolia ◽  
North China ◽  
Water Environment ◽  
Widespread Species ◽  
North China Platform ◽  
The North ◽  
Good Index ◽  
Conodont Fauna

AbstractForty-two conodont species belonging to 26 genera, which span the middle Darriwilian to the earliest Sandbian interval, are documented from the Wolonggang and Hatuke Creek sections in the Wuhai area of Inner Mongolia, North China. This conodont fauna is dominated by cosmopolitan and widespread species and accompanied by several endemic taxa. Four conodont zones, the Dzikodus tablepointensis, Eoplacognathus suecicus, Pygodus serra, and P. anserinus Zones, and three subzones, the Pygodus lunnensis, P. anitae, and Yangtzeplacognathus foliaceus Subzones, are recognized. Because of its slope habitat, the conodont fauna of Wuhai area differs from the coeval faunas on the North China Platform, which reflect a shallower and warmer water environment, but is similar to the contemporaneous faunas in Baltoscandia, South China, and Tarim. Moreover, the studied sections share several stratigraphically diagnostic taxa with the counterparts of the North China Platform and Western Newfoundland, which makes it an effective link for biostratigraphic correlations both regionally and internationally. The stratigraphically regular occurrences of Spinodus spinatus, a good index of a deep-water environment, represent a Spinodus biofacies that agrees with the Ordovician paleo-tectonic regimes of North China.

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