Search results for: Jian-Hua Jin

Items from 1 to 20 out of 29 results

article

First fossil fruits of Elaeocarpus (Elaeocarpaceae) in East Asia: Implications for phytogeography and paleoecology

Xiao‐Yan Liu, Steven R. Manchester, Andrew C. Rozefelds, Cheng Quan, more

Journal of Systematics and Evolution > 60 > 2 > 456 - 471

The genus Elaeocarpus contains approximately 360 species and occurs in mesic forest communities from India, through to China, Southeast Asia, New Guinea, Australia, and New Caledonia. Elaeocarpus fossils are best known from the Eocene to the Miocene of Australia and the late Pliocene–early Pleistocene of India, but have not been documented from East Asia before. Here we describe six new species of...

article

Fossil pinnae, sporangia, and spores of Osmunda from the Eocene of South China and their implications for biogeography and paleoecology

Xiao‐Yan Liu, Yong‐Dong Wang, Li Wang, Ning Zhou, more

Journal of Systematics and Evolution > 60 > 1 > 220 - 234

The genus Osmunda L. contains approximately 10 extant species widely distributed in tropical and temperate regions, with the greatest concentration of species in East and Southeast Asia. Osmunda is characterized by dimorphic or commonly hemidimorphic fronds with dimorphic pinnae. Its geological history has been traced back to the Triassic. Most records of the genus are based on rhizomes and rarely...

article

Early Oligocene fruits and leaves of Burretiodendron (Malvaceae s.l.) from South China

Sheng‐Lan Xu, Tatiana M. Kodrul, Yan Wu, Natalia P. Maslova, more

Journal of Systematics and Evolution > 59 > 5 > 1100 - 1110

The genus Burretiodendron Rehder is currently endemic to an area near the China–Vietnam border and the limestone mountains of Thailand and Myanmar. The fossil records of this genus were previously found only from the Miocene of Yunnan, Southwest China, and the Oligocene of Guangxi, South China. Here, we describe fossil fruits and associated leaves of Burretiodendron, which were discovered in the lower...

article

Diverse epiphyllous fungi on Cunninghamia leaves from the Oligocene of South China and their paleoecological and paleoclimatic implications

Natalia P. Maslova, Aleksandra B. Sokolova, Тatiana M. Kodrul, Anna V. Tobias, more

Journal of Systematics and Evolution > 59 > 5 > 964 - 984

The unique co‐occurrence of thyriothecia belonging to three fossil genera of epiphyllous fungi, Stomiopeltites Alvin & Muir (Micropeltidaceae), Callimothallus Dilcher, and Trichothyrites Rosendahl (Microthyriaceae), are reported on the leaves of the same host plant, Cunninghamia shangcunica Kodrul, Gordenko & Sokolova from the Oligocene Shangcun Formation of the Maoming Basin, South China...

article

Northern Hemisphere megafossil of Dacrycarpus (Podocarpaceae) from the Miocene of South China and its evolutionary and paleoecological implications

Xin‐Kai Wu, Natalia E. Zavialova, Tatiana M. Kodrul, Xiao‐Yan Liu, more

Journal of Systematics and Evolution > 59 > 2 > 352 - 374

The modern genus Dacrycarpus (Endl.) de Laub. of the family Podocarpaceae, containing nine species, is mainly distributed in tropical mountain rainforests of the southwestern Pacific region, ranging from New Zealand to low‐latitude Asia. This genus has abundant fossil records in both hemispheres, but all the known megafossils were limited to Australasia and South America. Here we report on Dacrycarpus guipingensis...

article

Mummified fossil of Keteleeria from the Late Pleistocene of Maoming Basin, South China, and its phytogeographical and paleoecological implications

Lu‐Liang Huang, Jian‐Hua Jin, Alexei A. Oskolski

Journal of Systematics and Evolution > 59 > 1 > 198 - 215

Keteleeria is a small genus of Pinaceae now mainly restricted to eastern Asia. Although this genus has been documented with a wide distribution in the geologic record of Europe, North America, and Asia, its history in low‐latitude areas (including South China) has remained obscure. In this paper, a fossil wood of Keteleeria sp. is described from the Late Pleistocene (29–27 ka BP) of the Maoming Basin,...

article

Diversity of Menispermaceae from the Paleocene and Eocene of South China

Meng Han, Xin‐Kai Wu, Ming Tu, Tatiana M. Kodrul, more

Journal of Systematics and Evolution > 58 > 3 > 354 - 366

We present here the earliest known Asian fossil records of the Menispermaceae based on fossil fruits from Paleocene and Eocene localities in South China. A new genus and species, Paleoorbicarpum parvum sp. nov., and two new species of Stephania Loureiro, S. ornamenta sp. nov. and S. geniculata sp. nov., are recognized from Paleocene deposits of the Sanshui Basin, Guangdong, and a new occurrence of...

article

Mummified Magnoliaceae woods from the upper Oligocene of South China, with biogeography, paleoecology, and wood trait evolution implications

Lu‐Liang Huang, Jian‐Hua Jin, Cheng Quan, Alexei A. Oskolski

Journal of Systematics and Evolution > 58 > 1 > 89 - 100

In this paper, we describe a new species Magnolia nanningensis sp. nov., based on exceptionally well‐preserved mummified fossil woods from the late Oligocene of the Nanning Basin, Guangxi, South China. The features of these woods indicate a close affinity to the section Michelia of the subgenus Yulania belonging to the genus Magnolia sensu lato (Magnoliaceae). Magnolia nanningensis is the first fossil...

article

Early Oligocene Calocedrus (Cupressaceae) from the Maoming Basin, South China, and its paleogeographic and paleoclimatic implications

Yan Wu, Jian‐Hua Jin, Nan Li, Hui‐Min He, more

Journal of Systematics and Evolution > 57 > 2 > 142 - 152

The genus Calocedrus Kurz is characterized by flattened branches covered with decussate and dimorphic leaves. In this study, we describe fossil foliage of Calocedrus discovered in the Shangcun Formation (early Oligocene) of the Maoming Basin, South China. The fossils have wedge‐shaped branchlet segments and scale‐like strongly dimorphic leaves, similar to the fossil species Calocedrus lantenoisi...

article

An early Oligocene fossil acorn, associated leaves and pollen of the ring‐cupped oaks (Quercus subg. Cyclobalanopsis) from Maoming Basin, South China

Xiao‐Yan Liu, Sheng‐Lan Xu, Meng Han, Jian‐Hua Jin

Journal of Systematics and Evolution > 57 > 2 > 153 - 168

The ring‐cupped oaks (Quercus subg. Cyclobalanopsis) characterized by united and concentric ring‐cupped acorns, are mainly distributed in broad‐leaved evergreen forests in tropical and subtropical regions of East and Southeast Asia. Their geological history has been traced from the middle Eocene to Pleistocene. Most reports of the subgenus have been on the basis of leaves, whereas the acorns or cupules,...

article

Paleogene fossil fruits of Stephania (Menispermaceae) from North America and East Asia

Meng Han, Steven R. Manchester, Qiong‐Yao Fu, Jian‐Hua Jin, more

Journal of Systematics and Evolution > 56 > 2 > 81 - 91

Stephania Loureiro is a large genus within Menispermaceae, with approximately 60 extant species naturally distributed in tropical to subtropical areas in Asia and Africa, and a few in Oceania. This genus possesses highly characteristic endocarps that facilitate identification of extant and fossil specimens. Here, we report some well‐preserved fossil fruits of Stephania from North America and East...

article

Long non-coding RNA XLOC_008466 acts as an oncogenic molecular in cervical cancer tumorigenesis

Fang Guo, Yun-Zhi Chen, Liu Li, Cong Chen, more

Biomedicine & Pharmacotherapy > 2018 > 98 > C > 88-94

Cervical cancer is one of the most common malignant carcinomas in the female reproductive system. Long non-coding RNAs (lncRNAs) have been verified to participate in the tumorigenesis of cervical cancer. In present study, we investigate the role of lncRNA XLOC_008466 in the occurrence and progression of cervical cancer. Results showed that XLOC_008466 expression was up-regulated in cervical cancer...

article

Mummified fruits of Choerospondias nanningensis sp. nov. (Anacardiaceae) from the upper Oligocene of a low latitude site in East Asia

Qiong‐Yao Fu, Long Li, Jian‐Hua Jin, Xiao‐Yan Liu, more

Journal of Systematics and Evolution > 55 > 5 > 477 - 483

Extant species of Choerospondias (Anacardiaceae) are mainly distributed in the tropical and subtropical areas of East Asia. However, the fossil record indicates that the genus was more widespread in the past, with Cenozoic occurrences in both Europe and Asia. We investigated the pericarp anatomy of well‐preserved mummified fossil fruits of Choerospondias from the upper part of Yongning Formation...

article

Paleogene monsoons across India and South China: Drivers of biotic change

Robert Spicer, Jian Yang, Alexei Herman, Tatiana Kodrul, more

Gondwana Research > 2017 > 49 > C > 350-363

Monsoonal climates at low latitudes (<32°N) are an inevitable consequence of seasonal migrations of the Inter-tropical Convergence Zone (ITCZ), but the character of these monsoons depends on continental configuration, orographic expression and the strength of Hadley circulation. To explore the evolution of monsoon systems across southern Asia we compare climate signatures archived in ten Paleogene...

article

Eocene–early Oligocene climate and vegetation change in southern China: Evidence from the Maoming Basin

Alexei B. Herman, Robert A. Spicer, Galina N. Aleksandrova, Jian Yang, more

Palaeogeography, Palaeoclimatology, Palaeoecology > 2017 > 479 > C > 126-137

Although the Eocene-Oligocene climate transition marks a critical point in the development of the ‘icehouse’ global climate of the present little is known about this important change in the terrestrial realm at low latitudes. Our palynological study of the Shangcun Formation shows it to be early Oligocene in age: palyno-assemblages in the lower part of the formation indicate a cool interval dominated...

article

Camellia nanningensis sp. nov.: the earliest fossil wood record of the genus Camellia (Theaceae) from East Asia

Lu-Liang Huang, Jian-Hua Jin, Cheng Quan, Alexei A. Oskolski

Journal of Plant Research > 2016 > 129 > 5 > 823-831

A new species Camellia nanningensis was described on the basis of well-preserved mummified wood from the upper Oligocene Yongning Formation of Nanning Basin in Guangxi Province, South China. This represents the most ancient fossil wood assigned to Camellia, and the earliest fossil record of the family Theaceae in China. This fossil material shows that Camellia occurred in China as early as the late...

chapter

Research on increasing production benefit of economic crops under irrigation

Jian-hua Jin, Yang-ren Wang

2016 Fifth International Conference on Agro-Geoinformatics (Agro-Geoinformatics) > 1 - 5

2016 5th International Conference on Agro-geoinformatics (Agro-geoinformatics)

In arid and semi-arid regions, irrigation system optimization is very significant for rational water use. The optimized irrigation system of cotton in yuncheng district of shanxin, potatoes in Datong district was researched. By using Jensen model, with the goal of maximizing the benefit, the yield and benefit were calculated. The results showd that the water consumption of different economic crops...

chapter

Research on crop dynamic irrigation lower limit under limited water supply I — Method

Yang-ren Wang, Jian-hua Jin, Qun-chang Liu

2016 Fifth International Conference on Agro-Geoinformatics (Agro-Geoinformatics) > 1 - 4

2016 5th International Conference on Agro-geoinformatics (Agro-geoinformatics)

In the case that water resources can not meet the irrigation water requirement, how to Irrigate according to the crop optimization irrigation time, maximize benefit of the limited water supply, is an important problem for agricultural sustainable development. So the concept of dynamic irrigation low limit was put forward. The dynamic irrigation low limit relates with crop growth and development time...

article

A new find of the fossil Cyclosorus from the Eocene of South China and its paleoclimatic implication

Serge V. Naugolnykh, Li Wang, Meng Han, Jian-Hua Jin

Journal of Plant Research > 2016 > 129 > 1 > 3-12

The thelypteroid ferns are widely distributed across tropical regions around the world, but information about their fossil representatives is scarce. A new species, Cyclosorus scutum Naugolnykh, Wang, Han et Jin was discovered from the Eocene Changchang Formation of Hainan Island, South China, and is described on the basis of sterile and fertile leaves, sori, sporangia and spores preserved in situ...

article

The algebraic characterizations for a formal power series over complete strong bimonoids

Jian Hua Jin, Chun Quan Li

SpringerPlus > 2016 > 5 > 1 > 1-18

On the basis of run semantics and breadth-first algebraic semantics, the algebraic characterizations for a classes of formal power series over complete strong bimonoids are investigated in this paper. As recognizers, weighted pushdown automata with final states (WPDAs for short) and empty stack (WPDAs $$^{\emptyset }$$ ∅ ) are shown to be equivalent based on run semantics. Moreover, it is...

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INFONA - science communication portal

Search results for: Jian-Hua Jin

First fossil fruits of Elaeocarpus (Elaeocarpaceae) in East Asia: Implications for phytogeography and paleoecology

Fossil pinnae, sporangia, and spores of Osmunda from the Eocene of South China and their implications for biogeography and paleoecology

Early Oligocene fruits and leaves of Burretiodendron (Malvaceae s.l.) from South China

Diverse epiphyllous fungi on Cunninghamia leaves from the Oligocene of South China and their paleoecological and paleoclimatic implications

Northern Hemisphere megafossil of Dacrycarpus (Podocarpaceae) from the Miocene of South China and its evolutionary and paleoecological implications

Mummified fossil of Keteleeria from the Late Pleistocene of Maoming Basin, South China, and its phytogeographical and paleoecological implications

Diversity of Menispermaceae from the Paleocene and Eocene of South China

Mummified Magnoliaceae woods from the upper Oligocene of South China, with biogeography, paleoecology, and wood trait evolution implications

Early Oligocene Calocedrus (Cupressaceae) from the Maoming Basin, South China, and its paleogeographic and paleoclimatic implications

An early Oligocene fossil acorn, associated leaves and pollen of the ring‐cupped oaks (Quercus subg. Cyclobalanopsis) from Maoming Basin, South China

Paleogene fossil fruits of Stephania (Menispermaceae) from North America and East Asia

Long non-coding RNA XLOC_008466 acts as an oncogenic molecular in cervical cancer tumorigenesis

Mummified fruits of Choerospondias nanningensis sp. nov. (Anacardiaceae) from the upper Oligocene of a low latitude site in East Asia

Paleogene monsoons across India and South China: Drivers of biotic change

Eocene–early Oligocene climate and vegetation change in southern China: Evidence from the Maoming Basin

Camellia nanningensis sp. nov.: the earliest fossil wood record of the genus Camellia (Theaceae) from East Asia

Research on increasing production benefit of economic crops under irrigation

Research on crop dynamic irrigation lower limit under limited water supply I — Method

A new find of the fossil Cyclosorus from the Eocene of South China and its paleoclimatic implication

The algebraic characterizations for a formal power series over complete strong bimonoids

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