Shankou, Anning [Maotianshan Shale Mbr, Yuanshan Fm] (Cambrian of China)

Also known as Shankou biota; Chengjiang biota

Where: Yunnan, China (24.8° N, 102.4° E: paleocoordinates 35.2° N, 161.3° 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 a 10 m thick succession at the base of the Maotianshan Shale.

• 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

Collection methods: bulk,

• COLLECTOR: Multiple collectors. REPOSITORY: Early Life Research Center (ELRC), 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 86929: authorized by Austin Hendy, entered by Austin Hendy on 24.02.2009

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.
unclassified
  -
Nectocaris pteryx
  - Nectocarididae
"Vetustovermis planus" = Nectocaris pteryx
"Vetustovermis planus" = Nectocaris pteryx Conway Morris 1976
apparently does not include the type of Petalium latus, which is from Ercai
Hexactinellida
 Reticulosa - Protospongiidae
Saetaspongia sp. Mehl and Reitner 1993 glass sponge
Demospongiae
 Protomonaxonida - Hazeliidae
Crumillospongia sp. Rigby 1986 demosponge
Hazelia sp. Walcott 1920 demosponge
 Protomonaxonida - Choiidae
Choia sp. Walcott 1920 demosponge
 Protomonaxonida - Leptomitidae
Leptomitus sp. Walcott 1886 demosponge
Paraleptomitella sp. Chen et al. 1989 demosponge
Leptomitella sp. Rigby 1986 demosponge
Dinomischus
  - Dinomischidae
Dinomischus sp. Conway Morris 1977
Scleroctenophora
  -
Batofasciculus sp. Hou et al. 1999
Coeloscleritophora
 Chancelloriida - Chancelloriidae
Allonnia sp. Doré and Reid 1965
Parvulonoda
  -
Parvulonoda sp. Rigby and Hou 1995
Lingulata
 Lingulida - Botsfordiidae
Diandongia sp. Rong 1974
 Lingulida - Obolidae
Lingulella sp. Salter 1866
Chileata
  -
Longtancunella sp. Hou et al. 1999
Brachiopoda
  - Mickwitziidae
Heliomedusa sp. Sun and Hou 1987
Hyolitha
 Hyolithida - Sulcavitidae
Ambrolinevitus sp. Syssoiev 1958
unclassified
  -
Priapulida indet. Théel 1906
 Selkirkiimorpha - Selkirkiidae
"Paraselkirkia sp." = Selkirkia
"Paraselkirkia sp." = Selkirkia Walcott 1911
Palaeoscolecida
 Cricocosmida - Palaeoscolecidae
Palaeoscolex sp. Whittard 1953
 Palaeoscolecidomorpha -
Maotianshania sp. Sun and Huo 1987
 Palaeoscolecidomorpha - Cricocosmiidae
 Archaeopriapulida - Ottoidae
Banffia sp. Walcott 1911
Corynetis
  -
"Corynetis sp." = Corynetis, "Anningvermis sp." = Corynetis
"Corynetis sp." = Corynetis Luo and Hu 1999
"Anningvermis sp." = Corynetis Luo and Hu 1999
Sicyophorus
  -
Acosmia
  -
Acosmia sp. Chen and Zhou 1997
Xenusia
 Archonychophora - Paucipodiidae
 Hallucishaniids -
Hallucigenia sp. Conway Morris 1977
Cardiodictyon
  -
 Bradoriida -
Kunmingella sp. Huo 1956
 Parvancorinomorpha - Parvancorinidae
Primicaris sp. Zhang et al. 2003
Shankouia
  -
Shankouia sp. Waloszek et al. 2005
Artiopoda
 Conciliterga -
Kuamaia sp. Hou 1987
Saperion sp. Hou et al. 1991
 Nektaspidida -
Cindarella sp. Chen et al. 1996
Xandarella sp. Hou et al. 1991
 Nektaspidida - Naraoiidae
Naraoia sp. Walcott 1912
Trilobita
 Redlichiida - Yunnanocephalidae
Yunnanocephalus sp. Kobayashi 1936 trilobite
 Redlichiida - Redlichiidae
Eoredlichia sp. Chang 1950 trilobite
Artiopoda
 Aglaspidida - Strabopidae
Parapaleomerus sp. Hou et al 1999
  -
Retifacies sp. Hou et al. 1989
 Radiodonta - Amplectobeluidae
Amplectobelua sp. Hou et al. 1995
Deuteropoda
 Fuxianhuiida - Fuxianhuiidae
Fuxianhuia sp. Hou 1987
Crustacea
 Waptiida - Waptiidae
Waptia sp. Walcott 1912
Deuteropoda
 Hymenostraca -
Branchiocaris sp. Briggs 1976
 Mollisoniida -
Deuteropoda
 Isoxyida - Isoxyidae
Isoxys sp. Walcott 1890
Megacheira
 Fortiforcipida - Fortiforcipidae
Fortiforceps sp. Hou and Bergström 1997
 Leanchoiliida - Leanchoiliidae
Leanchoilia sp. Walcott 1912
 Bilateria - Eldoniidae
Eldonia sp. Walcott 1911
Vetulicolida
  - Vetulicolidae
Vetulicola sp. Hou 1987
Shankouclava
  -
Shankouclava sp. Chen et al. 2003