Yangjuan-Chupiwa section, bed Cy 3 (Triassic of China)

Where: Guizhou, China (25.5° N, 104.9° E: paleocoordinates 11.7° N, 94.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Neogondolella constricta cornuta conodont zone, Guanling Formation, Illyrian (247.2 - 242.0 Ma)

• Near top of upper member, Guanling Formation. 3.2 m thick interval, early Illyrian.

Environment/lithology: lithified, coarse-grained, shelly/skeletal, gray, cherty/siliceous packstone

• grey,medium−bedded, coarse−grained, slightly silicified biodetrital limestone

Size class: macrofossils

Preservation: replaced with silica

Collection methods: chemical, acetic,

• Repository: GMPKU, Geological Museum of Peking University, Beijing, China.

Primary reference: Z. Sun, W. Hao, Y. Sun and D. Jiang. 2009. Silicified Anisian (Middle Triassic) spiriferinid brachiopods from Guizhou, South China. Acta Palaeontologica Polonica 54:61-68 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 135667: authorized by Matthew Clapham, entered by Matthew Clapham on 01.11.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Spiriferinida - Spiriferellinidae
Pseudospiriferina pinguis Yang and Xu 1966
7 articulated shells and 4 dorsal valves
Pseudospiriferina multicostata Yang and Xu 1966
27 articulated shells, 278 ventral and 387 dorsal valves
 Spiriferinida - Pennospiriferinidae
Punctospirella fragilis Schlotheim 1814
12 shells, 6 ventral and 8 dorsal valves