Also known as SSF 26.6
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 7826: authorized by Mark Patzkowsky, entered by Phil Borkow on 03.06.2000, edited by Austin Hendy and Uta Merkel
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Pachytheca triangula n. gen. n. sp.2
Pachytheca triangula n. gen. n. sp.2 | |
Hyolitha | |
Conotheca rotunda n. sp.2
Conotheca rotunda n. sp.2 Qian et al. 2000 | |
Microcornus sp.2 Mambetov 1972 | |
Orthothecimorpha | |
Xystritheca crenulata n. gen. n. sp.2
Xystritheca crenulata n. gen. n. sp.2 Qian et al. 2000 | |
Neogloborilus sp.2 Qian and Zhang 1983 | |
Aculifera | |
Halkieria mira1 Qian and Xiao 1984 | |
Cambroclavida | |
Zhijinites claviformis Qian and Xiao 1984 | |
Parazhijinites guizhouensis Qian and Yin 1984 |