A New Helmetiid Arthropod from the Early Cambrian Chengjiang Lagerstätte, Southwest China

2014 ◽  
Vol 88 (2) ◽  
pp. 367-370 ◽  
Author(s):  
Fangchen Zhao ◽  
Shixue Hu ◽  
Han Zeng ◽  
Maoyan Zhu
Keyword(s):  
Yunnan Province ◽  
Anterior Margin ◽  
New Genus ◽  
Southwest China ◽  
Posterolateral Corner ◽  
Early Cambrian ◽  
Body Width ◽  
Total Body ◽  
Chengjiang Lagerstätte ◽  
Cephalic Shield

A new arthropod, Haifengella corona new genus new species is described from the early Cambrian Chengjiang Lagerstätte (Series 2, Stage 3), Yunnan Province, southwest China. It is readily assignable to helmetiida based on gross morphology of the tergum. The new helmetiid is unique in having the marginal spines extending over one-third of the total body width. The weakly sclerotized tergum consists of six thoracic tergites with edge-to-edge tergite articulations. The sub-trapezoidal cephalic shield has a pair of long spines projecting from each posterolateral corner. A prehypostomal sclerite (anterior sclerite) recesses in the anterior margin of the cephalic shield, and a pair of bulges that are close to the prehypostomal sclerite in the cephalic shield are presumed to be the position of ventral eyes. Each of the thoracic tergites exhibits a pair of long spines projecting from the posterolateral corners. The semicircular pygidium carries one terminal spine and two pairs of lateral spines.

A review of the non-lyctine powder-post beetles of Yunnan (China) with a new genus and new species (Coleoptera: Bostrichidae)

Zootaxa ◽  
2022 ◽  
Vol 5091 (4) ◽  
pp. 501-545
Author(s):  
YI-FENG ZHANG ◽  
LING-ZENG MENG ◽  
ROGER A. BEAVER
Keyword(s):  
New Species ◽  
Southeast Asia ◽  
Yunnan Province ◽  
New Genus ◽  
Southwest China ◽  
Geological History ◽  
Yunnan Region ◽  
Palearctic Region ◽  
History Of ◽  
First Time

The powder post beetles (Coleoptera: Bostrichidae) (except Lyctinae) of Yunnan Province in Southwest China are reviewed for the first time. Keys to twenty-six genera and fifty-two species from the Yunnan region are provided. One new genus and seven new species are described: Dinoderus (Dinoderastes) hongheensis sp. nov., Dinoderus (Dinoderastes) nanxiheensis sp. nov., Gracilenta yingjiangensis gen. nov., sp. nov., Calonistes vittatus sp. nov., Calophagus colombiana sp. nov., Xylodrypta guochuanii sp. nov. and Xylodrypta zhenghei sp. nov.. Fourteen species are recorded in China for the first time. The bostrichid fauna of Yunnan is compared with those of the neighbouring bio-geographically related Southeast Asian and Himalayan regions. The fauna has a close affinity with that of tropical Southeast Asia and a much weaker relationship with the Palearctic region. The differences with the Himalayas may reflect the separate evolutionary and complex geological history of the two areas.

A crown group priapulid from the early Cambrian Guanshan Lagerstätte

2017 ◽  
Vol 154 (6) ◽  
pp. 1329-1333 ◽  
Author(s):  
SHI-XUE HU ◽  
MAO-YAN ZHU ◽  
FANG-CHEN ZHAO ◽  
MICHAEL STEINER
Keyword(s):  
Yunnan Province ◽  
The Body ◽  
Early Cambrian ◽  
Caudal Appendage ◽  
Crown Group ◽  
Stage 4 ◽  
Mazon Creek ◽  
Chengjiang Lagerstätte ◽  
Moscovian Stage ◽  
New Discovery

AbstractA well-preserved fossil priapulid worm, Xiaoheiqingella sp., is reported from the early Cambrian Guanshan Lagerstätte (Cambrian Series II, Stage 4) near Kunming City, Yunnan Province, SW China. The body of the animal consists of four sections: a swollen introvert, a constricted neck, a finely annulated trunk and a caudal appendage. The body configuration exhibits a close resemblance to that of the crown group priapulid Xiaoheiqingella peculiaris from the early Cambrian Chengjiang Lagerstätte. The new discovery provides another striking example of crown group priapulids, representing the third occurrence of crown group fossil priapulids after the Chengjiang Lagerstätte (Cambrian Series II, Stage 3) and the Mazon Creek Lagerstätte (late Moscovian Stage, Pennsylvanian). The discovery also sheds new light on the early diversity and evolution of priapulid worms.

Descriptions of a new genus and three new species of Phasmatodea from Southwest China (Insecta: Phasmatodea)

Zootaxa ◽  
2008 ◽  
Vol 1701 (1) ◽  
pp. 40
Author(s):  
FRANK H. HENNEMANN ◽  
OSKAR V. CONLE ◽  
WEIWEI ZHANG ◽  
YE LIU
Keyword(s):  
New Species ◽  
Yunnan Province ◽  
New Genus ◽  
Southwest China ◽  
Type Specimens ◽  
Chongqing Municipality ◽  
Central Java ◽  
English Translations ◽  
Three New Species ◽  
First Time

The genus Parastheneboea Redtenbacher, 1908 is recorded for the first time from the Yunnan Province and Chongqing municipality, China. Two new species are described and illustrated: P. foliculata n. sp. from Yunnan based on the female and eggs, and P. simianshanensis n. sp. from Chongqing based on the male alone. The systematics of Parastheneboea Brunner v. Wattenwyl are briefly discussed with a list of species provided. Andropromachus Carl, 1913 is represented in China by only one species, A. guangxiense (Chen & He, 2000). The genus is briefly discussed and shown to be closely related to Neohirasea Rehn, 1904. An English translation of the original Chinese description of A. guangxiense (Chen & He) is provided. A re-description, a brief review, comments and a key to the species of Pericentrus Redtenbacher, 1908 are provided. The genus is shown to belong in the subfamily Lonchodinae Brunner v. Wattenwyl, 1893 and to be related to Menexenus Stål, 1875. Pericentrus appendiculatus Redtenbacher, 1908 is transferred to the genus Trychopeplus Shelford, 1919 (n. comb.) and the type-locality “Central-Java” shown to be wrong. Pericentrus Redtenbacher has so far not been recorded from China but is very likely to be present in South Xizang (= Tibet). The new genus Cnipsomorpha n. gen. is described for three highly mountainous species from Yunnan Province, Cnipsus apteris Liu & Cai, 1992, Cnipsus colorantis Chen & He, 1996 and Cnipsomorpha erinacea n. sp., of which the latter is designated as the type-species. All three species are only known from the females. The egg of C. erinacea n. sp. is the only one known from the genus and briefly described and illustrated. The new genus is related to Parapachymorpha Brunner v. Wattenwyl, 1893, and hence provisionally attributed to Phasmatidae: Pachymorphinae: Gratidiini. A key is provided to distinguish between the species of Cnipsomorpha n. gen.. English translations of the original Chinese descriptions of Cnipsus apteris Liu & Cai, 1992 and Cnipsus colorantis Chen & He, 1996 are presented. Type-specimens of new taxa are deposited in IZCAS, INCA and the collections of the authors.

The Burgess Shale arthropod Mollisonia (M. sinica new species): new occurrence from the Middle Cambrian Kaili fauna of southwest China

2002 ◽  
Vol 76 (6) ◽  
pp. 1106-1108 ◽  
Author(s):  
Xingliang Zhang ◽  
Yuanlong Zhao ◽  
Ruidong Yang ◽  
Degan Shu
Keyword(s):  
Southwest China ◽  
Middle Part ◽  
Guizhou Province ◽  
Cambrian Explosion ◽  
Early Cambrian ◽  
Burgess Shale ◽  
Middle Cambrian ◽  
Lowermost Part ◽  
Dark Green ◽  
Chengjiang Lagerstätte

The Early Cambrian Chengjiang Lagerstätte, Yunnan Province, Southwest China, has become one of the most celebrated Cambrian fossil Lagerstatten not only for perhaps the earliest biota of soft-bodied organisms in the Phanerozoic (Yuan and Zhao, 1999; Zhang et aI., 2001; but see Budd and Jensen, 2000), but also for a number of significant discoveries (Shu et al., 1996a, 1996b, 1999a, 1999b, 2001), proven to be of particular importance for our understanding the Cambrian explosion. Also in Southwest China, Guizhou Province, there is a very significant, although less acclaimed, Middle Cambrian soft-bodied fauna as well, namely the Kaili fauna, which occurs in the Kaili Formation in Kaili area (Kuizhou). The age of the Kaili Formation ranges from late Early to early Middle Cambrian. Regionally, the Kaili Formation is about 222 m thick and consists of three parts. The lowermost part (late Early Cambrian, about 55 m thick) is dominated by thin, calcareous siltstone strata interbedded with limestone layers at the base. The middle part (early Middle Cambrian, ca. 123 m) consists of dark green mudstone and shale, while the uppermost part (ca. 44 m) is composed of interbedded limestone and silty shale. The Kaili fauna is derived from mudstones in the middle part of the formation (Zhao et aI., 1994; Zhu et aI., 2000).

scholarly journals Symbiotic fouling of Vetulicola, an early Cambrian nektonic animal

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Yujing Li ◽  
Mark Williams ◽  
Thomas H. P. Harvey ◽  
Fan Wei ◽  
Yang Zhao ◽  
...  
Keyword(s):  
Fossil Record ◽  
Yunnan Province ◽  
Southwest China ◽  
Early Cambrian ◽  
Chengjiang Biota ◽  
Marine Deposit

Abstract Here, we report the earliest fossil record to our knowledge of surface fouling by aggregates of small vermiform, encrusting and annulated tubular organisms associated with a mobile, nektonic host, the enigmatic Cambrian animal Vetulicola. Our material is from the exceptionally preserved early Cambrian (Epoch 2, Age 3), Chengjiang biota of Yunnan Province, southwest China, a circa 518 million-year old marine deposit. Our data show that symbiotic fouling relationships between species formed a component of the diversification of animal-rich ecosystems near the beginning of the Phanerozoic Eon, suggesting an early escalation of intimate ecologies as part of the Cambrian animal radiation.

scholarly journals Genetic diversity and population structure of rice stripe virus in China

2009 ◽  
Vol 90 (4) ◽  
pp. 1025-1034 ◽  
Author(s):  
Tai-Yun Wei ◽  
Jin-Guang Yang ◽  
Fu-Long Liao ◽  
Fang-Luan Gao ◽  
Lian-Ming Lu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Yunnan Province ◽  
Southwest China ◽  
Eastern China ◽  
Rice Stripe Virus ◽  
Genetic Distances ◽  
Geographical Regions ◽  
Strong Negative Selection ◽  
Recent Outbreak

Rice stripe virus (RSV) is one of the most economically important pathogens of rice and is repeatedly epidemic in China, Japan and Korea. The most recent outbreak of RSV in eastern China in 2000 caused significant losses and raised serious concerns. In this paper, we provide a genotyping profile of RSV field isolates and describe the population structure of RSV in China, based on the nucleotide sequences of isolates collected from different geographical regions during 1997–2004. RSV isolates could be divided into two or three subtypes, depending on which gene was analysed. The genetic distances between subtypes range from 0.050 to 0.067. The population from eastern China is composed only of subtype I/IB isolates. In contrast, the population from Yunnan province (southwest China) is composed mainly of subtype II isolates, but also contains a small proportion of subtype I/IB isolates and subtype IA isolates. However, subpopulations collected from different districts in eastern China or Yunnan province are not genetically differentiated and show frequent gene flow. RSV genes were found to be under strong negative selection. Our data suggest that the most recent outbreak of RSV in eastern China was not due to the invasion of new RSV subtype(s). The evolutionary processes contributing to the observed genetic diversity and population structure are discussed.

A New Platy-armored Worm from the Early Cambrian Chengjiang Lagerstätte, South China

2010 ◽  
Vol 77 (1) ◽  
pp. 1-6 ◽  
Author(s):  
HAN Jian ◽  
ZHANG Xingliang ◽  
ZHANG Zhifei ◽  
SHU Degan
Keyword(s):  
South China ◽  
Early Cambrian ◽  
Chengjiang Lagerstätte

A new cockroach (Blattaria: Caloblattinidae) from the Upper Triassic Xujiahe Formation of Sichuan Province, southwestern China

2013 ◽  
Vol 44 (2) ◽  
pp. 167-174
Author(s):  
Yan Fang ◽  
Haichun Zhang ◽  
Bo Wang ◽  
Daran Zheng
Keyword(s):  
Elemental Analysis ◽  
Anterior Margin ◽  
New Genus ◽  
Sichuan Province ◽  
Upper Triassic ◽  
Southwestern China ◽  
New Taxon ◽  
New Genus And Species ◽  
X Ray ◽  
Xujiahe Formation

A new genus and species of the cockroach family Caloblattinidae, Dazhublattella lini gen. et sp.n., is described from the Upper Triassic Xujiahe Formation of Sichuan Province, in southwestern China. The new taxon is similar to the Triassic Caloblattina mathildae (Geinitz, 1883) (Vršanský & Ansorge 2007) in the venation and pattern, but differs in the less elongated forewing with arched anterior margin. An elemental analysis of the wing is undertaken using Energy Dispersive X-ray analysis.

scholarly journals Acronema crassifolium sp. nov. (Apiaceae), a distinct new species from Yunnan, southwest China

Phytotaxa ◽  
2013 ◽  
Vol 87 (3) ◽  
pp. 39
Author(s):  
HUAN-CHONG WANG ◽  
XIN-MAO ZHOU ◽  
HANG SUN ◽  
YUE-HUA WANG
Keyword(s):  
New Species ◽  
Pollen Morphology ◽  
Yunnan Province ◽  
Southwest China

Acronema crassifolium, a distinct new species endemic to Yunnan province, China, is described and illustrated. It is characterized by its thickly papery, ternate, abaxially dark purple leaves, terminal umbels with 8–13 rays, and absent calyx teeth. The pollen morphology of the new species is also described in this study.

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