Also known as SSF 26.4

Where: Xinjiang, China (41.2° N, 80.3° E: paleocoordinates 12.2° S, 136.2° E)

• outcrop-level geographic resolution

When: Yurtus Formation, Atdabanian (521.0 - 516.0 Ma)

• LITHOSTRATIGRAPHY: From the Yurtus Fm, which unconformably overlies the Qigebulak Fm and is unconformably overlain by the Xiaoerbulak Fm. AGE: Most likely age is late Tommotian to early Atdabanian, on the basis of various biostratigraphic indicators; here place in Adtabanian on the basis of stratigraphic position and more recent evidence. STRATIGRAPHIC POSITION: From multiple beds within local section, mostly concentrated towards top of the section.

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified, intraclastic limestone

Preservation: cast, replaced with phosphate

Collected by Conway Morris & Chapman in 1991; reposited in the SM

Collection methods: bulk, acetic,

• COLLECTOR: Conway Morris and Chapman, 1991. REPOSITORY: SM (Sedgewick Museum).

Primary reference: S. Conway Morris, J. S. Crampton, X. Bing and A.J. Chapman. 1997. Lower Cambrian Cambroclaves (Incertae sedis) from Xinjiang, China, with comments on the morphological variability of sclerites. Palaeontology 40(1):167-189 [M. Patzkowsky/P. Borkow/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 7827: authorized by Mark Patzkowsky, entered by Phil Borkow on 04.06.2000, edited by Austin Hendy

Creative Commons license: CC BY (attribution)