Mafang_Maf-a 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)

• 9 cm thick interval 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 90149: authorized by Alex Lin, entered by Alex Lin on 09.07.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Problematica indet. Andrews 1970
Palaeoscolecida
 Cricocosmida - Palaeoscolecidae
Mafangscolex sinensis Hou and Sun 1988
 Palaeoscolecidomorpha - Cricocosmiidae
Cricocosmia jinningensis Hou and Sun 1988
Bilateria
 Luolishaniida -
Facivermis yunnanicus Hou and Chen 1989
unclassified
  -
Arthropoda indet. Latreille 1829
Megacheira
 Leanchoiliida - Leanchoiliidae
Crustacea
 Waptiida - Waptiidae
Artiopoda
 Conciliterga -
Kuamaia lata Hou 1987
 Nektaspidida - Naraoiidae
"Naraoia longicaudata" = Misszhouia longicaudata, Naraoia spinosa
"Naraoia longicaudata" = Misszhouia longicaudata Zhang and Hou 1985
Naraoia spinosa Zhang and Hou 1985
 Radiodonta - Amplectobeluidae
 Radiodonta - Anomalocarididae
 Bradoriida -
Hyolitha
 Hyolithida - Sulcavitidae
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805
Lingulata
 Lingulida - Obolidae
"Lingulella chengjiangensis" = Eoglossa chengjiangensis
"Lingulella chengjiangensis" = Eoglossa chengjiangensis Jin et al. 1993
Brachiopoda
  - Mickwitziidae
Heliomedusa orienta Sun and Hou 1987