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Yu'anshan Formation

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Aspiculate sponges from the <span class="search-highlight">Yu&#x27;anshan</span> <span class="search-highlight">Formation</span>, South China. ( a ) Vauxia...

Aspiculate sponges from the Yu'anshan Formation, South China. ( a ) Vauxia...

Published: 21 April 2021
Fig. 1. Aspiculate sponges from the Yu'anshan Formation, South China. ( a ) Vauxia progracilenta n. sp. Holotype, YKLP 15237a, Malong. ( b ) Counterpart of specimen A, YKLP 15237b, Malong. ( c ) Vauxia sp. YKLP 15238, Haikou. ( d ) Vauxia paraleioia n. sp., YKLP 15239, Chengjiang; ( e
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Malongitubus kuangshanensis from the upper part of the <span class="search-highlight">Yu’anshan</span> <span class="search-highlight">Formation</span>...

Malongitubus kuangshanensis from the upper part of the Yu’anshan Formation...

Published: 01 January 2018
Figure 1 Malongitubus kuangshanensis from the upper part of the Yu’anshan Formation. ( 1 ) NIGP-165029: a colony with a bent lower portion and a branched upper portion. ( 2 ) NIGP-105030: dense tubaria overlapping each other. The framed area is enlarged in ( 9 ). ( 3 ) NIGP-105031: a branched
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Naraoia spinosa ? Zhang and Hou, 1985 from the <span class="search-highlight">Yu&#x27;anshan</span> <span class="search-highlight">Formation</span> (lower...

Naraoia spinosa ? Zhang and Hou, 1985 from the Yu'anshan Formation (lower...

Published: 01 October 2014
Fig. 10.— Naraoia spinosa ? Zhang and Hou, 1985 from the Yu'anshan Formation (lower Cambrian series 2, stage 3), Kunming, China (teaching collection, Department of Geological Sciences, University of Saskatchewan). A ) Right-posterior portion of the cephalon showing the glabella and caecum
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FIGURE 6. Fossils from the lower Cambrian <span class="search-highlight">Yu&#x27;anshan</span> <span class="search-highlight">Formation</span> at Mafang sho...

FIGURE 6. Fossils from the lower Cambrian Yu'anshan Formation at Mafang sho...

Published: 01 January 2009
FIGURE 6. Fossils from the lower Cambrian Yu'anshan Formation at Mafang showing the preservational characteristics of the two taphofacies. All scale bars  =  5 mm, except G–H  =  2 mm. Comparison of the preservation of Fuxianhuia protensa Hou, 1987 (arthropod) within A) event (BA7-047) and B
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FIGURE 3 —Fossils from the Lower Cambrian <span class="search-highlight">Yu&#x27;anshan</span> <span class="search-highlight">Formation</span> at Mafang (Fi...

FIGURE 3 —Fossils from the Lower Cambrian Yu'anshan Formation at Mafang (Fi...

Published: 01 July 2007
FIGURE 3 —Fossils from the Lower Cambrian Yu'anshan Formation at Mafang (Figs. A–K) and Ercaicun (Fig. L) near Haikou, Kunming. All bar scales 10 mm except: C, I, = 5 mm; L, 1 mm. Abbreviations: an, antenna; ap, appendage; as, axial spine; ex, exopodite; eye, compound eye; fc, free cheek; hs, head
Journal Article

Unveiling an ignored taphonomic window in the early Cambrian Chengjiang Biota

Xiangtong Lei, Peiyun Cong, Shangnan Zhang, Fan Wei, Ross P. Anderson
Journal: Geology
Published: 12 July 2024
Geology (2024)
DOI: https://doi.org/10.1130/G52215.1
... previously reported soft-bodied Chengjiang fossils are from the event mudstone beds (EB) of the Yu’anshan Formation. Here, we present the first comprehensive investigation of the soft-bodied fossils from the interbedded background mudstone beds (BGB), based on collections made across the past decade...
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TANNUOLINA AND MICRINA (TANNUOLINIDAE) FROM THE LOWER CAMBRIAN OF EASTERN YUNNAN, SOUTH CHINA, AND THEIR SCLERITOME RECONSTRUCTION

GUOXIANG LI, SHUHAI XIAO
Published: 01 September 2004
Journal of Paleontology (2004) 78 (5): 900–913.
DOI: https://doi.org/10.1666/0022-3360(2004)078<0900:TAMTFT>2.0.CO;2
... sclerites. Here we describe Micrina xiaotanensis new species and Tannuolina zhangwentangi Qian and Bengtson, 1989 from the Lower Cambrian Shiyantou and Yu'anshan formations (upper Meishucunian to Qiongzhusian stages) at Xiaotan, eastern Yunnan, South China. The new material not only extends the geographic...
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Photograph of the Mo-Ni–polyelement phosphatic and sulfidic layer (up to 0....

Photograph of the Mo-Ni–polyelement phosphatic and sulfidic layer (up to 0....

Published: 01 September 2010
Fig. 4 Photograph of the Mo-Ni–polyelement phosphatic and sulfidic layer (up to 0.05 m thick) with siltstone in the immediate footwall and black shale in the immediate hanging wall (Yu’anshan Formation) at the Kunyang P deposit.
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Carbon isotope (δ 13 C), uranium isotope (δ 238 U), and Ce anomaly (Ce/Ce*)...

Carbon isotope (δ 13 C), uranium isotope (δ 238 U), and Ce anomaly (Ce/Ce*)...

Published: 30 May 2018
section are from Li et al. (2013) . Ages of key strata are from Ling et al. (2013) , Li et al. (2013) , and references therein. SYT—Shiyantou Formation, YAS—Yu’anshan Formation, HJS—Hongjingshao Formation.
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Sclerites of Wiwaxia . (a–d) from the lower Cambrian (Series 2, Stage ...

Sclerites of Wiwaxia . (a–d) from the lower Cambrian (Series 2, Stage ...

Published: 24 November 2014
Figure 2. Sclerites of Wiwaxia . (a–d) from the lower Cambrian (Series 2, Stage 3) Maotianshan Shale Member, Yu’anshan Formation ( Eoredlichia–Wudingaspis Zone) in the Mafang section, Haikou near Kunming, Yunnan Province; (e) from the middle Cambrian
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Haifengella corona n. gen. n. sp. from the lower Cambrian (Series 2, Stage...

Haifengella corona n. gen. n. sp. from the lower Cambrian (Series 2, Stage...

Published: 01 March 2014
Figure 2 Haifengella corona n. gen. n. sp. from the lower Cambrian (Series 2, Stage 3) Maotianshan Shale Member, middle part of the Yu'anshan Formation ( Eoredlichia–Wudingaspis Zone) in the Mafang section, Haikou near Kunming, Yunnan Province; 1 , 4–6 , NIGPAS158639; 2 , NIGPAS158640: 1
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Head anatomy of Fuxianhuia . ( a , c – f ) Specimens of Fuxianhuia prote...

Head anatomy of Fuxianhuia . ( a , c – f ) Specimens of Fuxianhuia prote...

Published: 22 March 2021
Fig. 1. Head anatomy of Fuxianhuia . ( a , c – f ) Specimens of Fuxianhuia protensa from the Yu'anshan Formation (Chengjiang biota). ( a ) Full specimen; NIGPAS166941. ( c ) Inset of head area showing successive anterior sclerites and mandibles; area of Figure 2d, e, k indicated
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Soft-bodied and lightly sclerotized fossils from new localities. Scale bar ...

Soft-bodied and lightly sclerotized fossils from new localities. Scale bar ...

Published: 01 March 2001
Fig. 3. Soft-bodied and lightly sclerotized fossils from new localities. Scale bar is 1 cm in ( a ) & ( c ), and 3 mm in the others. ( a ) Pipiscid-like animal Xidazoon stephanus Shu, Conway Morris & Zhang 1999 ( Shu et al . 1999 a ) from the Yu’anshan Member, Qiongzhusi Formation
Journal Article

GRAVITATIONAL CONSTRAINTS ON THE BURIAL OF CHENGJIANG FOSSILS

XI-GUANG ZHANG, XIAN-GUANG HOU
Journal: PALAIOS
Published: 01 July 2007
PALAIOS (2007) 22 (4): 448–453.
DOI: https://doi.org/10.2110/palo.2006.p06-085r
...FIGURE 3 —Fossils from the Lower Cambrian Yu'anshan Formation at Mafang (Figs. A–K) and Ercaicun (Fig. L) near Haikou, Kunming. All bar scales 10 mm except: C, I, = 5 mm; L, 1 mm. Abbreviations: an, antenna; ap, appendage; as, axial spine; ex, exopodite; eye, compound eye; fc, free cheek; hs, head...
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Journal Article

Geochronological constraint on the Cambrian Chengjiang biota, South China

Chuan Yang, Xian-Hua Li, Maoyan Zhu, Daniel J. Condon, Junyuan Chen
Published: 15 March 2018
Journal of the Geological Society (2018) 175 (4): 659–666.
DOI: https://doi.org/10.1144/jgs2017-103
...) for the Cambrian explosion. Supplementary material: SIMS and CA-ID-TIMS zircon U–Pb data are available at https://doi.org/10.6084/m9.figshare.c.4024849 The early Cambrian Chengjiang biota occurs in the Maotianshan Shale Member of the Yu'anshan Formation in eastern Yunnan Province, South China ( Fig. 1...
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Details of the head anatomy of Fuxianhuia . ( a , b , h , i , k ) Spec...

Details of the head anatomy of Fuxianhuia . ( a , b , h , i , k ) Spec...

Published: 22 March 2021
. 1c ); NIGPAS166941. ( c–g , j , l ) Specimens of Fuxianhuia protensa from the Yu'anshan Formation (Chengjiang biota). ( c ) Carbonaceous remains inside ocular lobe (open arrowhead); NIGPAS166938. ( d ) Anterior section of the head showing arrangement of the three anterior sclerites; NIGPAS166941
Journal Article

A New Helmetiid Arthropod From The Early Cambrian Chengjiang Lagerstätte, Southwest China

Fangchen Zhao, Shixue Hu, Han Zeng, Maoyan Zhu
Published: 01 March 2014
Journal of Paleontology (2014) 88 (2): 367–370.
DOI: https://doi.org/10.1666/13-103
...Figure 2 Haifengella corona n. gen. n. sp. from the lower Cambrian (Series 2, Stage 3) Maotianshan Shale Member, middle part of the Yu'anshan Formation ( Eoredlichia–Wudingaspis Zone) in the Mafang section, Haikou near Kunming, Yunnan Province; 1 , 4–6 , NIGPAS158639; 2 , NIGPAS158640: 1...
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EXTREME PGE CONCENTRATIONS IN LOWER CAMBRIAN ACID TUFF LAYER FROM THE KUNYANG PHOSPHATE DEPOSIT, YUNNAN PROVINCE, SOUTH CHINA—POSSIBLE PGE SOURCE FOR LOWER CAMBRIAN Mo-Ni–POLYELEMENT ORE BEDS

Jan Pašava, Hartwig Frimmel, Luo Taiyi, Magdalena Koubová, Karel Martínek
Journal: Economic Geology
Published: 01 September 2010
Economic Geology (2010) 105 (6): 1047–1056.
DOI: https://doi.org/10.2113/econgeo.105.6.1047
...Fig. 4 Photograph of the Mo-Ni–polyelement phosphatic and sulfidic layer (up to 0.05 m thick) with siltstone in the immediate footwall and black shale in the immediate hanging wall (Yu’anshan Formation) at the Kunyang P deposit. ...
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EARLY CAMBRIAN TRILOBITES FROM ANGORICHINA, FLINDERS RANGES, SOUTH AUSTRALIA, WITH A NEW ASSEMBLAGE FROM THE PARARAIA BUNYEROOENSIS ZONE

JOHN R. PATERSON, GLENN A. BROCK
Published: 01 January 2007
Journal of Paleontology (2007) 81 (1): 116–142.
DOI: https://doi.org/10.1666/0022-3360(2007)81[116:ECTFAF]2.0.CO;2
..., including the eponymous species, Yorkella aff. australis , Eoredlichia sp., Redlichia sp., and the new species Wutingaspis euryoptilos and Yunnanocephalus macromelos . Trilobites of the Pararaia bunyerooensis Zone show a strong affinity with those from the Yu'anshan Member of the Heilinpu Formation...
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HEXACTINELLID SPONGES FROM THE EARLY CAMBRIAN BLACK SHALE OF SOUTH ANHUI, CHINA

WEN WU, AI-HUA YANG, DORTE JANUSSEN, MICHAEL STEINER, MAO-YAN ZHU
Published: 01 November 2005
Journal of Paleontology (2005) 79 (6): 1043–1051.
DOI: https://doi.org/10.1666/0022-3360(2005)079[1043:HSFTEC]2.0.CO;2
... body fossils are well documented from the Middle Cambrian Burgess Shale ( Rigby, 1986 ; Rigby and Collins, 2004 ); they also have been reported from the Early Cambrian Yu'anshan Formation in eastern Yunnan (Chengjiang-type fauna; Chen et al., 1989 , 1990 ; Rigby and Hou, 1995 ), from the Niutitang...
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