Maotianshan, Bed 3 [Yuanshan Fm] (Cambrian of China)

Where: Yunnan, China (24.0° N, 102.0° E: paleocoordinates 36.1° N, 161.0° E)

• outcrop-level geographic resolution

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

• STRATIGRAPHIC RELATIONS: From the Yuanshan Mbr [now formation rank] of the Chiungchussu Formation. AGE: Atdabanian on the basis of trilobite biostratigraphy; Eoredlichia- Wutingaspis trilobite zone. STRATIGRAPHIC POSITION: From bed 3 near top of section.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, silty shale and lithified, brown, gray siltstone

• SPECIFIC LITHOLOGY: Dark-grey shale and silty shale intercalated with greyish- brown siltstone. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression

Reposited in the NIGPAS

• COLLECTOR: Not stated in text. REPOSITORY: NIGP (Nanjing Institute of Geology and Palaeontology).

Primary reference: Y. G. Jin, X. G. Hou, and H. Y. Wang. 1993. Lower Cambrian pediculate lingulids from Yunnan, China. Journal of Paleontology 67(5):788-798 [A. Hendy/A. Hendy/P. Novack-Gottshall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90495: authorized by Austin Hendy, entered by Austin Hendy on 03.08.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Not exhaustive for marine invertebrate taxa, but containing characteristic forms. NOMENCLATURE: Authoritative publication, with modern nomenclature and species-resolution identifications.
Show authors, comments, and common names
 Bilateria - Eldoniidae
Stellostomites eumorphus
Stellostomites eumorphus Sun and Hou 1987
 Bradoriida -
Kunmingella maotianshanensis, Kunmingella dadiyakouensis
Deuteropoda
 Isoxyida - Isoxyidae
Isoxys auritus, Isoxys paradoxus
Isoxys auritus Jiang 1982
Isoxys paradoxus Hou 1987
Artiopoda
 Nektaspidida - Naraoiidae
Naraoia longicaudata, Naraoia spinosa
Naraoia longicaudata Zhang and Hou 1985
Naraoia spinosa Zhang and Hou 1985