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 (521.0 - 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

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