Anning [Yuanshan Fm (formerly Qiongzhusi)]: Atdabanian, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Shankouclausa anningense
Kumaia lata
Chen et al. 2002
Cricosmia jiningensis
Chen et al. 2002
Coeloscleritophora - Chancelloriida - Chancelloriidae
Chancelloria eros Walcott 1920
Chen et al. 2002
Hexactinellida - Reticulosa - Protospongiidae
Saetaspongia densa Mehl and Reitner 1993
Chen et al. 2002
Demospongiae - Protomonaxonida - Halichondritidae
Halichondrites sp. Walcott 1920
Chen et al. 2002
Demospongiae - Protomonaxonida - Leptomitidae
Paraleptomitella dictyodroma Chen et al. 1989
Chen et al. 2002
Leptomitella teretiusculus
Chen et al. 2002
Leptomitella confusa Chen et al. 1989
Chen et al. 2002
Vetulicolida - Vetulicolidae
Vetulicola rectangula
Chen et al. 2002
Eldoniidae
Stellostomites eumorhus
synonym of Eldonia
Lingulata - Lingulida - Botsfordiidae
Diandongia pista Rong 1974
Lingulata - Discinida - Disciniidae
Heliomedusa orienta Sun and Hou 1987
Bradoriida
Kunmingella douvillei Mansuy 1912
Kunyangella cheni
Chen et al. 2002
Acanthomeridion serratum Hou et al. 1989
Chen et al. 2002
Isoxyida - Isoxyidae
Isoxys auritus Jiang 1982
Chen et al. 2002
Isoxys paradoxus Hou 1987
Chen et al. 2002
Mollisoniida
Urokodia aequalis Hou et al. 1989
Fuxianhuiida - Fuxianhuiidae
Fuxianhuia protensa Hou 1987
Chen et al. 2002
Waptiida - Waptiidae
Chuandianella ovata (Li 1975)
Chen et al. 2002
unclassified
Branchiocaris yunnanensis Hou 1987
Chen et al. 2002
Megacheira - Leanchoiliida - Leanchoiliidae
Leanchoilia illecebrosa (Hou 1987)
Chen et al. 2002
Trilobita - Redlichiida - Yunnanocephalidae
Yunnanocephalus yunnanensis (Mansuy 1912)
Chen et al. 2002
Trilobita - Redlichiida - Redlichiidae
Kuanyangia pustulosa (Lu 1941)
Chen et al. 2002
Wutingaspis tingi Kobayashi 1944
Wutingaspis anningensis n. sp. Luo 1981
Luo 1981
Wutingaspis planifrons n. sp. Luo 1981
Luo 1981
Eoredlichia intermedia (Lu 1940)
Chen et al. 2002
recombined as Eoredlichia intermediata
Nektaspidida - Naraoiidae
Naraoia longicaudata Zhang and Hou 1985
Naraoia spinosa Zhang and Hou 1985
Chen et al. 2002
Nektaspidida
Xandarella spectaculum Hou et al. 1991
Chen et al. 2002
Cindarella eucalla Chen et al. 1996
Chen et al. 2002
unclassified
Retifacies abnormalis Hou et al. 1989
Chen et al. 2002
Cardiodictyon catenulum Hou et al. 1991
Chen et al. 2002
Microdictyon sinicum Chen et al. 1989
Chen et al. 2002
Palaeopriapulites parvus Hou et al. 1999
Sicyophorus rara Luo and Hu 1999
Chen et al. 2002
Maotianshania cylindrica Sun and Huo 1987
Chen et al. 2002
Palaeoscolecida - Cricocosmida - Palaeoscolecidae
Palaeoscolex sinensis Hou and Sun 1988
Chen et al. 2002
replaced by Mafangscolex sinensis
unclassified
Sinocylindra yunnanensis Chen and Erdtmann 1991
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]