Xiaolantian, unit XL1 (Cambrian of China)

Also known as Chengjiang fauna

Where: Yunnan, China (24.7° N, 103.0° E: paleocoordinates 35.0° N, 160.7° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Yuanshan Member (Qiongzhusi Formation), Atdabanian (520.0 - 516.0 Ma)

• lower Eoredlichia trilobite zone, XL1 corresponds to unit M2 of Maotianshan

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; lithified mudstone

• soft mudstone

Size class: macrofossils

Primary reference: X. Hou and J. Bergström. 1997. Arthropods of the Lower Cambrian Chengjiang fauna, southwest China. Fossils & Strata 45:1-116 [W. Kiessling/W. Kiessling]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 96405: authorized by Wolfgang Kiessling, entered by Uta Merkel on 07.06.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Megacheira
 Fortiforcipida - Fortiforcipidae
Fortiforceps foliosa Hou and Bergström 1997
Leanchoilia
  -
Crustacea
 Canadaspidida - Canadaspididae
Canadaspis laevigata Hou and Bergström 1991
Artiopoda
 Conciliterga -
Kuamaia lata Hou 1987 artiopod
  -
Squamacula clypeata Hou and Bergström 1997 artiopod
Retifacies abnormalis
  -
Retifacies abnormalis Hou et al. 1989
 Fuxianhuiida - Fuxianhuiidae
 Fuxianhuiida - Chengjiangocarididae
Chengjiangocaris longiformis Hou and Bergström 1991
 Nektaspida -
Naraoia longicaudata Zhang and Hou 1985
Naraoia spinosa Zhang and Hou 1985
Demospongea
 Protomonaxonida - Choiidae
Allantospongia mica n. gen. n. sp., Choiaella radiata n. gen. n. sp.
Allantospongia mica n. gen. n. sp. Rigby and Hou 1995 demosponge
Choiaella radiata n. gen. n. sp. Rigby and Hou 1995 demosponge
Hexactinellida
 Reticulosa - Protospongiidae
Triticispongia diagonata Steiner et al. 1993 glass sponge