PBDB Collection

Anning [Yuanshan Fm (formerly Qiongzhusi)] (Cambrian of China)

Also known as Chengjiang biota

Where: Yunnan, China (24.8° N, 102.4° E: paleocoordinates 35.2° N, 161.3° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Yuanshan Formation, Atdabanian (521.0 - 516.0 Ma)

• 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.

• member-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, green, yellow, carbonaceous mudstone

• "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)

• LITHOLOGY: Dark grey-green (yellow, when weathered), finely laminated mudstones, containing organic hash in great quantity. LITHIFICATION: Lithified, on the basis of figures.

Size class: macrofossils

Preservation: adpression, soft parts

Collection methods: surface (in situ),

• COLLECTOR: Multiple collectors. REPOSITORY: Not stated in text.

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 86846: authorized by Austin Hendy, entered by Austin Hendy on 21.02.2009, edited by Uta Merkel

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for all groups. NOMENCLATURE: From a combination of authoritative and review publications, with modern nomenclature and species-resolution identifications.

Show authors, comments, and common names

unclassified
-	Shankouclausa anningense, Kumaia lata¹, Cricosmia jiningensis¹ Shankouclausa anningense Kumaia lata¹ Cricosmia jiningensis¹
Sinocylindra yunnanensis
-	Sinocylindra yunnanensis¹ Sinocylindra yunnanensis¹ Chen and Erdtmann 1991
Coeloscleritophora
Chancelloriida - Chancelloriidae	Chancelloria eros¹ Chancelloria eros¹ Walcott 1920
Demospongiae
Protomonaxonida - Halichondritidae	Halichondrites sp.¹ Halichondrites sp.¹ Walcott 1920 demosponge
Protomonaxonida - Leptomitidae	Leptomitella teretiusculus¹, Leptomitella confusa¹, Paraleptomitella dictyodroma¹ Leptomitella teretiusculus¹ demosponge Leptomitella confusa¹ Chen et al. 1989 demosponge Paraleptomitella dictyodroma¹ Chen et al. 1989 demosponge
Hexactinellida
Reticulosa - Protospongiidae	Saetaspongia densa¹ Saetaspongia densa¹ Mehl and Reitner 1993 glass sponge

Bilateria - Eldoniidae	"Stellostomites eumorhus" = Eldonia "Stellostomites eumorhus" = Eldonia
Vetulicolida
- Vetulicolidae	Vetulicola rectangula¹ Vetulicola rectangula¹
Megacheira
Leanchoiliida - Leanchoiliidae	Leanchoilia illecebrosa¹ Leanchoilia illecebrosa¹ Hou 1987

Mollisoniida -	Urokodia aequalis Urokodia aequalis Hou et al. 1989
Deuteropoda
Isoxyida - Isoxyidae	Isoxys paradoxus¹, Isoxys auritus¹ Isoxys paradoxus¹ Hou 1987 Isoxys auritus¹ Jiang 1982
Fuxianhuiida - Fuxianhuiidae	Fuxianhuia protensa¹ Fuxianhuia protensa¹ Hou 1987
Hymenostraca -	Branchiocaris yunnanensis¹ Branchiocaris yunnanensis¹ Hou 1987
Crustacea
Waptiida - Waptiidae	Chuandianella ovata¹ Chuandianella ovata¹ Li 1975
Artiopoda
Nektaspidida - Naraoiidae	Naraoia spinosa¹, "Naraoia longicaudata" = Misszhouia longicaudata Naraoia spinosa¹ Zhang and Hou 1985 "Naraoia longicaudata" = Misszhouia longicaudata Zhang and Hou 1985
Nektaspidida -	Cindarella eucalla¹, Xandarella spectaculum¹ Cindarella eucalla¹ Chen et al. 1996 Xandarella spectaculum¹ Hou et al. 1991
-	Retifacies abnormalis¹ Retifacies abnormalis¹ Hou et al. 1989
Trilobita
Redlichiida - Redlichiidae	Kuanyangia pustulosa¹, "Eoredlichia intermedia" = Eoredlichia intermediata¹, Wutingaspis anningensis n. sp.², Wutingaspis tingi, Wutingaspis planifrons n. sp.² Kuanyangia pustulosa¹ Lu 1941 trilobite "Eoredlichia intermedia" = Eoredlichia intermediata¹ Lu 1940 trilobite Wutingaspis anningensis n. sp.² Luo 1981 trilobite Wutingaspis tingi Kobayashi 1944 trilobite Wutingaspis planifrons n. sp.² Luo 1981 trilobite
Redlichiida - Yunnanocephalidae	Yunnanocephalus yunnanensis¹ Yunnanocephalus yunnanensis¹ Mansuy 1912 trilobite

Bradoriida -	Acanthomeridion serratum¹, Kunmingella douvillei, Kunyangella cheni¹ Acanthomeridion serratum¹ Hou et al. 1989 Kunmingella douvillei Mansuy 1912 Kunyangella cheni¹
Hallucishaniids - Hallucigeniidae	Cardiodictyon catenulum¹ Cardiodictyon catenulum¹ Hou et al. 1991
Microdictyon
-	Microdictyon sinicum¹ Microdictyon sinicum¹ Chen et al. 1989
Sicyophorus
-	Sicyophorus rara¹, Palaeopriapulites parvus Sicyophorus rara¹ Luo and Hu 1999 Palaeopriapulites parvus Hou et al. 1999

Palaeoscolecidomorpha -	Maotianshania cylindrica¹ Maotianshania cylindrica¹ Sun and Huo 1987
Palaeoscolecida
Cricocosmida - Palaeoscolecidae	"Palaeoscolex sinensis" = Mafangscolex sinensis¹ "Palaeoscolex sinensis" = Mafangscolex sinensis¹ Hou and Sun 1988
Brachiopoda
- Mickwitziidae	Heliomedusa orienta Heliomedusa orienta Sun and Hou 1987
Lingulata
Lingulida - Botsfordiidae	Diandongia pista Diandongia pista Rong 1974

¹Chen et al. 2002; ²Luo 1981