Silurian rugose corals from the Kurosegawa Terrane, southwest Japan, and the first occurrence of Neobrachyelasma

2010 ◽  
Vol 84 (3) ◽  
pp. 466-476 ◽  
Author(s):  
Erika Kido
Keyword(s):  
South China ◽  
South China Block ◽  
Southwest Japan ◽  
Rugose Corals ◽  
First Occurrence ◽  
China And Japan ◽  
Upper Silurian ◽  
Middle Member ◽  
First Time ◽  
Kurosegawa Terrane

Four species of rugose corals (one new) are described from the Silurian of the Kurosegawa Terrane, Southwest Japan. They are Neobrachyelasma japonica n. sp., Pseudamplexus sp., Amsdenoides sp., and Amplexoides sp. aff. A. chaoi (Grabau, 1925). These species occur in the Middle Member of the Gionyama Formation, which is Late Llandovery to Early Ludlow in age. Neobrachyelasma is reported for the first time from Japan. This genus occurs in the Lower Llandovery to Upper Silurian of Japan, South China, Kazakhstan, and the Altai and might be distributed only in South China and Japan during the Late Llandovery. Its occurrence in Japan may support a paleogeographic proximity of ‘Proto-Japan’ and the South China Block during the Silurian.

Nanshanophyllum and Shensiphyllum (Silurian Rugosa) from the Kurosegawa Terrane, southwest Japan, and their paleobiogeographic implications

2009 ◽  
Vol 83 (2) ◽  
pp. 280-292 ◽  
Author(s):  
Erika Kido
Keyword(s):  
South China ◽  
South China Block ◽  
Southwest Japan ◽  
The South ◽  
Middle Member ◽  
First Time ◽  
Kurosegawa Terrane

Three rugose species in two genera—Nanshanophyllum hamadai n. sp., N. gokasense n. sp., and Shensiphyllum sp.—are described for the first time from the Kurosegawa Terrane, Southwest Japan. These species occur in the Middle Member of the Gionyama Formation, which is Late Llandovery to Early Ludlow (Silurian) in age. The two genera, Nanshanophyllum and Shensiphyllum, formerly were known only from South China and Qaidam. The occurrence of these two genera in Japan may indicate a paleogeographic connection between ‘Proto-Japan’ and the South China Block during the Silurian.

Belgian substages as a basis for an international chronostratigraphic division of the Tournaisian and Viséan

2013 ◽  
Vol 151 (2) ◽  
pp. 229-243 ◽  
Author(s):  
EDOUARD POTY ◽  
MARKUS ARETZ ◽  
LUC HANCE
Keyword(s):  
Sequence Stratigraphy ◽  
South China ◽  
International Division ◽  
Time Intervals ◽  
Rugose Corals ◽  
First Occurrence ◽  
Three Stages ◽  
Surrounding Areas ◽  
Visean Stage

AbstractThe Tournaisian and Viséan were formerly considered as series and in Belgium were divided into two (Hastarian and Ivorian) and three stages (Moliniacian, Livian and Warnantian), which are now considered as substages. The Belgian substages are based on conodonts and foraminifers, and incidentally on rugose corals, and are described here. Their boundaries, biostratigraphy and sequence stratigraphy are well detailed and clearly defined. The base of the Hastarian (lower Tournaisian) corresponds to the base of the Tournaisian (base of Carboniferous); the base of the Ivorian (upper Tournaisian) corresponds to the appearance of the conodont Polygnathus communis carina, a little above the last Siphonodella; the base of the Moliniacian (lower Viséan) corresponds to the base of the Viséan stage defined by the first occurrence of the foraminifer Eoparastaffella simplex; the Livian (middle Viséan) corresponds to the foraminiferal MFZ12 Zone and is marked by the appearance of Koskinotextularia and Pojarkovella nibelis; the base of the Warnantian (upper Viséan) is marked by the appearance of Neoarchaediscus, Vissariotaxis, Planospirodiscus, and Palaeotextularia with a bilaminar wall, the index taxa of the MFZ13-Neoarchaediscus Zone. The up-to-date chronostratigraphic subdivision of the Tournaisian and Viséan is not limited to Belgium and the surrounding areas. It can be applied through Eurasia as far as South China. The Belgian units could therefore be the basis for a future international division of the Tournaisian into two parts (Hastarian and Ivorian) and of the Viséan into three parts (Moliniacian, Livian and Warnantian), corresponding to time intervals of c. 5–8 Ma.

scholarly journals Fossil Leaves of Meliosma (Sabiaceae) With Associated Pollen and a Eupodid Mite From the Eocene of Maoming Basin, South China

2022 ◽  
Vol 9 ◽  
Author(s):  
Maria G. Moiseeva ◽  
Tatiana M. Kodrul ◽  
Maria V. Tekleva ◽  
Natalia P. Maslova ◽  
Xinkai Wu ◽  
...  
Keyword(s):  
South China ◽  
Pollen Grains ◽  
Fossil Leaves ◽  
Wide Range ◽  
The Family ◽  
First Occurrence ◽  
Terrestrial Habitats ◽  
First Time ◽  
Damage Types ◽  
A New Species

A first occurrence of the genus Meliosma (Sabiaceae) is reported from the upper Eocene of the Maoming Basin of South China. This fossil is one of the oldest reliable records of the genus within its modern center of diversity. Fossil leaves are assigned to a new species, Meliosma eosinica sp. nov. based on leaf morphology and epidermal characters. The leaf epidermal anatomy of fossil Meliosma is illustrated for the first time. We also provide the first SEM observation of pollen grains associated with Meliosma. This study also documents an occurrence of mites within the leaf domatia previously unknown from the fossil record. We presume that the studied mite belongs to the superfamily Eupodoidea (Arthropoda), and probably the family Eupodidae, which comprises very small soft-bodied cosmopolitan mites occupying a wide range of terrestrial habitats. Additionally, we analyze the damage types on the fossil leaves of Meliosma. They exhibit exclusively external foliage feeding damage caused by arthropods and traces of probable fungal infection. A review of currently known fossil occurrences of leaves, fruits, and wood of Meliosma provides evidence for the geological and geographical distribution of the genus.

Polygnathids (Conodonta) around the Pragian/Emsian boundary from the Dacun-1 section (central Guangxi, South China)

2019 ◽  
Vol 93 (06) ◽  
pp. 1210-1220 ◽  
Author(s):  
Jian-Feng Lu ◽  
José Ignacio Valenzuela-Ríos ◽  
Jau-Chyn Liao ◽  
Yi Wang
Keyword(s):  
South China ◽  
Lower Boundary ◽  
South China Block ◽  
The South ◽  
Lowermost Part ◽  
Conodont Fauna ◽  
First Time ◽  
Upper Boundary

AbstractThe base of the Emsian, which is defined by the first appearance of the conodont Polygnathus kitabicus, has never been successfully demonstrated in the South China Block (including Guangxi and eastern Yunnan). As a result, we studied conodonts from the lowermost part of the Shizhou Member of the Yukiang Formation at the Dacun-1 section in the Liujing area, Guangxi. This new investigation has revealed a conodont fauna only consisting of Polygnathus pireneae, P. sokolovi, P. kitabicus, P. sp. and Pandorinellina exigua philipi, which can be assigned to the uppermost part of the pireneae Zone and the lowermost part of the kitabicus Zone in ascending order. The Pragian/Emsian boundary at the Dacun-1 section is located in the highest thick-bedded limestone bed that can be observed in the lowermost part of the Shizhou Member. Therefore, this is the first time that the lower boundary of the Emsian defined by the lowest occurrence of P. kitabicus is reported in the South China Block. However, the scarcity of suitable limestone samples for conodont analysis in the middle and upper parts of the Shizhou Member precludes definitive identification of the upper boundary of the kitabicus Zone in the Liujing area.

Spatio-temporal evolution and dynamic origin of Jurassic-Cretaceous magmatism in the South China Block

2021 ◽  
Vol 217 ◽  
pp. 103605
Author(s):  
Xianzhi Cao ◽  
Nicolas Flament ◽  
Sanzhong Li ◽  
R. Dietmar Müller
Keyword(s):  
South China ◽  
Temporal Evolution ◽  
South China Block ◽  
The South ◽  
Spatio Temporal ◽  
Cretaceous Magmatism

Mesozoic tectonic evolution of the eastern South China Block: A review on the synthesis of the regional deformation and magmatism

2021 ◽  
pp. 104028
Author(s):  
Chunlin Li ◽  
Zongxiu Wang ◽  
Qingtian Lü ◽  
Yuanlong Tan ◽  
Leilei Li ◽  
...  
Keyword(s):  
South China ◽  
Tectonic Evolution ◽  
South China Block ◽  
Regional Deformation
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