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

Also known as Chengjiang biota

Where: Yunnan, China (24.7° N, 102.7° E: paleocoordinates 35.2° N, 161.0° 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 86845: authorized by Austin Hendy, entered by Austin Hendy on 21.02.2009

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
 Bilateria - Eldoniidae
Stellostomites eumorphus
Stellostomites eumorphus Sun and Hou 1987
Palaeoscolecida
 Cricocosmida - Palaeoscolecidae
"Palaeoscolex sinensis" = Mafangscolex sinensis
"Palaeoscolex sinensis" = Mafangscolex sinensis Hou and Sun 1988
 Palaeoscolecidomorpha - Cricocosmiidae
Tabelliscolex hexagonus, Cricocosmia jiningensis
Tabelliscolex hexagonus Han et al. 2003
 Bilateria -
Onychodictyon ferox
Onychodictyon ferox Hou et al. 1991
Deuteropoda
 Isoxyida - Isoxyidae
Isoxys auritus
Isoxys auritus Jiang 1982
Megacheira
 Leanchoiliida - Leanchoiliidae
Leanchoilia illecebrosa
Deuteropoda
 Hymenostraca -
Branchiocaris yunnanensis
Crustacea
 Waptiida - Waptiidae
Chuandianella ovata
Deuteropoda
 Fuxianhuiida - Fuxianhuiidae
Fuxianhuia protensa
Trilobita
 Redlichiida - Yunnanocephalidae
Yunnanocephalus yunnanensis
Yunnanocephalus yunnanensis Mansuy 1912 trilobite
 Redlichiida - Redlichiidae
"Eoredlichia intermedia" = Eoredlichia intermediata, Kuanyangia pustulosa
"Eoredlichia intermedia" = Eoredlichia intermediata Lu 1940 trilobite
Kuanyangia pustulosa Lu 1941 trilobite
Artiopoda
 Nektaspidida - Naraoiidae
"Naraoia longicaudata" = Misszhouia longicaudata
"Naraoia longicaudata" = Misszhouia longicaudata Zhang and Hou 1985
 Bradoriida -
Kunmingella douvillei, Combinivalvula chengjiangensis, Kunyangella cheni
 Odaraiida - Pectocariidae
"? Odaraia eurypetala" = Pectocaris
"? Odaraia eurypetala" = Pectocaris
 Sabelliditida - Sabelliditidae
Sabellidites yunnanesis
Hyolitha
 Hyolithida - Sulcavitidae
Ambrolinevitus ventricosus
 Hyolithida -
Glossolites magnus
Lingulata
 Lingulida - Botsfordiidae
Diandongia pista
Diandongia pista Rong 1974
Brachiopoda
  - Mickwitziidae
Heliomedusa orienta
Heliomedusa orienta Sun and Hou 1987