Anning [Yuanshan Fm (formerly Qiongzhusi)]: Atdabanian, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Shankouclausa anningense
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Kumaia lata
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Chen et al. 2002 | ||||||
Cricosmia jiningensis
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Chen et al. 2002 | ||||||
Sinocylindra yunnanensis
Chen and Erdtmann 1991
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Chen et al. 2002 | ||||||
Cardiodictyon catenulum
Hou et al. 1991
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Chen et al. 2002 | ||||||
Microdictyon sinicum
Chen et al. 1989
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Chen et al. 2002 | ||||||
Bradoriida
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Kunyangella cheni
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Chen et al. 2002 | ||||||
Kunmingella douvillei
Mansuy 1912
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Acanthomeridion serratum
Hou et al. 1989
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Chen et al. 2002 | ||||||
Megacheira
- Leanchoiliida
- Leanchoiliidae
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Leanchoilia illecebrosa
(Hou 1987)
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Chen et al. 2002 | ||||||
Waptiida
- Waptiidae
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Chuandianella ovata
(Li 1975)
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Chen et al. 2002 | ||||||
unclassified
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Branchiocaris yunnanensis
Hou 1987
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Chen et al. 2002 | ||||||
Mollisoniida
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Urokodia aequalis
Hou et al. 1989
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Isoxyida
- Isoxyidae
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Isoxys paradoxus
Hou 1987
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Chen et al. 2002 | ||||||
Isoxys auritus
Jiang 1982
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Chen et al. 2002 | ||||||
Fuxianhuiida
- Fuxianhuiidae
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Fuxianhuia protensa
Hou 1987
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Chen et al. 2002 | ||||||
unclassified
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Retifacies abnormalis
Hou et al. 1989
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Chen et al. 2002 | ||||||
Trilobita
- Redlichiida
- Yunnanocephalidae
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Yunnanocephalus yunnanensis
(Mansuy 1912)
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Chen et al. 2002 | ||||||
Trilobita
- Redlichiida
- Redlichiidae
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Eoredlichia intermedia
(Lu 1940)
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Chen et al. 2002 | ||||||
recombined as Eoredlichia intermediata | |||||||
Kuanyangia pustulosa
(Lu 1941)
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Chen et al. 2002 | ||||||
Wutingaspis planifrons n. sp.
Luo 1981
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Luo 1981 | ||||||
Wutingaspis tingi
Kobayashi 1944
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Wutingaspis anningensis n. sp.
Luo 1981
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Luo 1981 | ||||||
Nektaspidida
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Cindarella eucalla
Chen et al. 1996
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Chen et al. 2002 | ||||||
Xandarella spectaculum
Hou et al. 1991
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Chen et al. 2002 | ||||||
Nektaspidida
- Naraoiidae
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Naraoia longicaudata
Zhang and Hou 1985
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recombined as Misszhouia longicaudata | |||||||
Naraoia spinosa
Zhang and Hou 1985
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Chen et al. 2002 | ||||||
unclassified
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Sicyophorus rara
Luo and Hu 1999
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Chen et al. 2002 | ||||||
Palaeopriapulites parvus
Hou et al. 1999
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Maotianshania cylindrica
Sun and Huo 1987
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Chen et al. 2002 | ||||||
Palaeoscolecida
- Cricocosmida
- Palaeoscolecidae
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Palaeoscolex sinensis
Hou and Sun 1988
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Chen et al. 2002 | ||||||
replaced by Mafangscolex sinensis | |||||||
Lingulata
- Lingulida
- Botsfordiidae
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Diandongia pista
Rong 1974
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Mickwitziidae
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Heliomedusa orienta
Sun and Hou 1987
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Vetulicolida
- Vetulicolidae
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Vetulicola rectangula
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Chen et al. 2002 | ||||||
Eldoniidae
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Stellostomites eumorhus
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synonym of Eldonia | |||||||
Hexactinellida
- Reticulosa
- Protospongiidae
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Saetaspongia densa
Mehl and Reitner 1993
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Chen et al. 2002 | ||||||
Demospongiae
- Protomonaxonida
- Halichondritidae
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Halichondrites sp.
Walcott 1920
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Chen et al. 2002 | ||||||
Demospongiae
- Protomonaxonida
- Leptomitidae
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Paraleptomitella dictyodroma
Chen et al. 1989
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Chen et al. 2002 | ||||||
Leptomitella teretiusculus
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Chen et al. 2002 | ||||||
Leptomitella confusa
Chen et al. 1989
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Chen et al. 2002 | ||||||
Coeloscleritophora
- Chancelloriida
- Chancelloriidae
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Chancelloria eros
Walcott 1920
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Chen et al. 2002 | ||||||
see common names |
Geography
Country: | China | State/province: | Yunnan | County: | Anning |
Coordinates: | 24.8° North, 102.4° East (view map) | ||||
Paleocoordinates: | 35.2° North, 161.3° East | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | local area |
Time
Period: | Cambrian | Epoch: | Series 2 |
Stage: | Stage 3 | 10 m.y. bin: | Cambrian 2 |
Key time interval: | Atdabanian | ||
Age range of interval: | 521.00000 - 515.60000 m.y. ago |
Stratigraphy
Formation: | Yuanshan | ||||
Stratigraphic resolution: | member | ||||
Stratigraphy comments: LITHOSTRATIGRAPHY: Formerly from the Yuanshan Mbr, Qiongzhusi Fm. Yuanshan is raised to formation rank in recent publications (Steiner 2005, 2007). AGE: Qiongzhusian in Steiner (2005); correlates to Atdabanian (Steiner, 2007). STRATIGRAPHIC POSITION: From the upper Yuanshan Fm. |
Lithology and environment
Primary lithology: | planar lamination,gray,green,yellow lithified carbonaceous mudstone |
Includes fossils? | Y |
Lithology description: LITHOLOGY: Dark grey-green (yellow, when weathered), finely laminated mudstones, containing organic hash in great quantity. LITHIFICATION: Lithified, on the basis of figures. | |
Environment: | marine indet. |
Geology comments: "benthic sediment flows... are believed to have been the the principal method of burial" (Shu et al. 1999b)
"presence of agglutinated quartz grains, substantially coarser than the surrounding matrix... suggests... that the animal inhabited a higher-energy, sandy sea floor and was transported" (Shu et al. 2001) |
Taphonomy
Modes of preservation: | body,adpression,soft parts |
Lagerst�tten type: | conservation |
Size of fossils: | macrofossils |
Spatial orientation: | random |
Spatial resolution: | allochthonous |
Collection methods and comments
Collection methods: | surface (in situ),survey of museum collection |
Reason for describing collection: | taxonomic analysis |
Collection method comments: COLLECTOR: Multiple collectors. REPOSITORY: Not stated in text. | |
Taxonomic list comments:COVERAGE: Exhaustive for all groups. NOMENCLATURE: From a combination of authoritative and review publications, with modern nomenclature and species-resolution identifications. |
Metadata
Also known as: | Chengjiang biota | ||
Database number: | 86846 | ||
Authorizer: | A. Hendy, W. Kiessling | Enterer: | A. Hendy, U. Merkel | Research group: | marine invertebrate |
Created: | 2009-02-21 12:27:44 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2009-02-21 12:27:44 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
29233. | M. Steiner, M. Zhu, Y. Zhao and B.-D. Erdtmann. 2005. Lower Cambrian Burgess Shale-type fossil associations of South China. Palaeogeography, Palaeoclimatology, Palaeoecology 220:129-152 [A. Hendy/A. Hendy] |
Secondary references:
29234 | L. Chen, H. Luo, S. Hu, J. Yin, Z. Jiang, Z. Wu, F. Li and A. Chen. 2002. Early Cambrian Chengjiang fauna in eastern Yunnan, CHina. Yunnan Science and Technology Press, Kunming 1-199 [A. Hendy/A. Hendy] | |
41948 | H. L. Luo. 1981. Trilobites from the Chiungchussu Formation (Lower Cambrian) in Meishucun of Jinning, Yunnan Province. Acta Palaeontologica Sinica 20(4):331-340 [W. Kiessling/U. Merkel] |