Haikou - live count [Maotianshan Shale Mbr, Yuanshan Fm] (Cambrian of China)

Also known as Chengjiang biota

Where: Yunnan, China (24.8° N, 102.6° E: paleocoordinates 35.1° N, 161.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• LITHOSTRATIGRAPHY: From the Maotianshan Shale Mbr of the Yuanshan Fm. AGE: Qiongzhusian in Steiner (2005); correlates to Atdabanian (Steiner, 2007). STRATIGRAPHIC POSITION: From unknown position within local section.

• group of beds-level stratigraphic resolution

Environment/lithology: delta front; lithified, black, brown, green, carbonaceous mudstone and lithified, black sandstone

• ENVIRONMENT: Shallow marine delta front setting in a shallow bay.
• LITHOLOGY: Fine laminated mudstone intercalated with non-fossiliferous sandstone bed; black in color, weathering to tan; organic rich. LITHIFICATION: Lithified, on the basis of figures.

Size class: macrofossils

Preservation: adpression, soft parts

Reposited in the NIGPAS

Collection methods: bulk,

• COLLECTOR: Multiple collectors. REPOSITORY: Early Life Research Center (ELRC) and Nanjing Institute of Geology and Paleontology (NIGPAS), Chengjiang.

Primary reference: S. Q. Dornbos and J.-Y. Chen. 2008. Community palaeoecology of the early Cambrian Maotianshan Shale biota: Ecological dominance of priapulid worms. Palaeogeography, Palaeoclimatology, Palaeoecology 258:200-212 [A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 86930: authorized by Austin Hendy, entered by Austin Hendy on 24.02.2009, edited by Alex Lin

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for all groups; abundance only for organisms already considered to be in the life assemblage at the time of deposition. NOMENCLATURE: From a combination of authoritative and review publications, with modern nomenclature, but with only-resolution identifications.
 Bradoriida -
Kunmingella sp. Huo 1956
Ercaia sp. Chen et al. 2001
 Redlichiida - Yunnanocephalidae
Yunnanocephalus sp. Kobayashi 1936 trilobite
 Redlichiida - Redlichiidae
Eoredlichia sp. Chang 1950 trilobite
 Aglaspidida - Strabopidae
Parapaleomerus sp. Hou et al 1999
Retifacies sp. Hou et al. 1989
 Trilobitomorpha -
Xandarellida sp. Chen et al. 1996
 Nektaspidida -
Sinoburius sp. Hou et al. 1991
Xandarella sp. Hou et al. 1991
Cindarella sp. Chen et al. 1996
 Nektaspidida - Naraoiidae
Naraoia sp. Walcott 1912
 Conciliterga -
Saperion sp. Hou et al. 1991
 Radiodonta - Anomalocarididae
 Fuxianhuiida - Fuxianhuiidae
Fuxianhuia sp. Hou 1987
 Waptiida - Waptiidae
Waptia sp. Walcott 1912
Acanthomeridion sp. Hou et al. 1989 ostracod
 Hymenostraca -
Branchiocaris sp. Briggs 1976
 Fortiforcipida - Fortiforcipidae
Fortiforceps sp. Hou and Bergström 1997
 Leanchoiliida - Leanchoiliidae
Leanchoilia sp. Walcott 1912
 Isoxyida - Isoxyidae
Isoxys sp. Walcott 1890
 Parvancorinomorpha - Parvancorinidae
Primicaris sp. Zhang et al. 2003
 Hallucishaniids -
Hallucigenia sp. Conway Morris 1977
Microdictyon sp. Bengston et al. 1981
Priapulida indet. Théel 1906
 Selkirkiimorpha - Selkirkiidae
"Paraselkirkia sp." = Selkirkia
"Paraselkirkia sp." = Selkirkia Walcott 1911
"Protopriapulites sp." = Sicyophorus
"Protopriapulites sp." = Sicyophorus
Corynetis sp. Luo and Hu 1999
 Cricocosmida - Palaeoscolecidae
Palaeoscolex sp. Whittard 1953
 Palaeoscolecidomorpha -
Maotianshania sp. Sun and Huo 1987
Cotyledion tylodes
Cotyledion tylodes1 Luo and Hu 1999
 Lophophorata -
Phlogites sp. Luo et al. 1999
  - Mickwitziidae
Heliomedusa sp. Sun and Hou 1987
 Lingulida - Obolidae
Lingulella sp. Salter 1866
Xianshanella haikouensis3 Zhang and Han 2004
 Lingulida - Botsfordiidae
Diandongia sp. Rong 1974
Longtancunella sp. Hou et al. 1999
  - Vetulicolidae
Vetulicola sp. Hou 1987
 Protomonaxonida - Halichondritidae
"Halicondrites sp." = Halichondrites
"Halicondrites sp." = Halichondrites Walcott 1920 demosponge
 Protomonaxonida - Hazeliidae
Hazelia sp. Walcott 1920 demosponge
Crumillospongia sp. Rigby 1986 demosponge
 Protomonaxonida - Leptomitidae
Paraleptomitella sp. Chen et al. 1989 demosponge
Leptomitus sp. Walcott 1886 demosponge
 Protomonaxonida - Choiidae
Choia sp. Walcott 1920 demosponge
  - Dinomischidae
Xianguangia sp. Chen and Erdtmann 1991
  - Dinomischidae
Dinomischus sp. Conway Morris 1977
Haikoucaris sp. Chen et al. 2004