Ercaicun_Erc-e Event beds [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)

When: Eoredlichia-Wutingaspis trilobite zone, Maotianshan Sh Member (Yuanshan Formation), Atdabanian (521.0 - 516.0 Ma)

• in a sequence of strata with alternating event layers and background mudstones

• member-level stratigraphic resolution

Environment/lithology: marine; mudstone

Size class: macrofossils

Preservation: mold/impression, soft parts

Collection methods: quarrying, surface (float), surface (in situ),

Primary reference: S.-X. Hu. 2005. Taphonomy and Palaeoecology of the Early Cambrian Chengjiang Biota from Eastern Yunnan, China. Berliner Paläobiologische Abhandlungen 7:1-197 [A. Lin/A. Lin]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 90137: authorized by Alex Lin, entered by Alex Lin on 08.07.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Bilateria
 Luolishaniida -
Cardiodictyon
  -
Cardiodictyon catenulum Hou et al. 1991
unclassified
  -
Arthropoda indet. Latreille 1829
 Parvancorinomorpha - Parvancorinidae
Primicaris larvaformis Zhang et al. 2003
 Bradoriida -
Crustacea
 Waptiida - Waptiidae
Deuteropoda
 Hymenostraca -
Ercaicunia multinodosa Luo et al. 1999
Megacheira
 Leanchoiliida - Leanchoiliidae
Deuteropoda
 Isoxyida - Isoxyidae
Isoxys auritus Jiang 1982
 Radiodonta - Amplectobeluidae
Trilobita
 Redlichiida - Redlichiidae
"Eoredlichia intermedia" = Eoredlichia intermediata
"Eoredlichia intermedia" = Eoredlichia intermediata Lu 1940 trilobite
 Redlichiida - Yunnanocephalidae
Yunnanocephalus sp. Kobayashi 1936 trilobite
Artiopoda
 Nektaspidida -
Cindarella eucalla Chen et al. 1996
 Nektaspidida - Naraoiidae
Naraoia longicaudata Zhang and Hou 1985
Naraoia spinosa Zhang and Hou 1985
Palaeoscolecida
 Cricocosmida - Palaeoscolecidae
Mafangscolex sinensis Hou and Sun 1988
 Palaeoscolecidomorpha - Cricocosmiidae
Cricocosmia jinningensis Hou and Sun 1988
Corynetis brevis
  -
Corynetis brevis Luo and Hu 1999
Paraselkirkia
  -
Sicyophorus
  -
Sicyophorus rara Luo and Hu 1999
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805
Rhynchonellata
 Orthida - Wangyuiidae
Lingulata
 Lingulida - Obolidae
"Lingulella chengjiangensis" = Eoglossa chengjiangensis
"Lingulella chengjiangensis" = Eoglossa chengjiangensis Jin et al. 1993
 Lingulida - Lingulellotretidae
 Lingulida - Discinidae
Heliomedusa orienta Sun and Hou 1987
Hyolitha
 Orthothecida - Triplicatellidae
"Linevitus opimus" = Triplicatella opimus
"Linevitus opimus" = Triplicatella opimus Yu 1974
Cambrorhytium
  -
unclassified
  -
Problematica indet. Andrews 1970
Coeloscleritophora
 Chancelloriida - Chancelloriidae