ammonites
Jiaozishan Section Bed 4 (AJ-4,3,2), Anshun County (Permian of China)

Where: Guizhou, China (26.3° N, 105.9° E: paleocoordinates 0.6° N, 96.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Wuchiapingian (259.0 - 254.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified, gray limestone and lithified, brown siltstone

• Upper part is dark gray limestone; central part is light to dark gray calcareous siltstone, limestone, siltstone; the lower part is brownish siltstone.

Size class: macrofossils

Preservation: mold/impression

Collection methods: All specimens are kept in the Nanjing Institute of Geology and Paleontology, Academia Sinica.

Primary reference: Z. Q. Yao, J. T. Xu, Z. G. Zheng, X. H. Zhao, and Z. G. Mou. 1980. Late Permian Stratigraphy and Fossils in Western Guizhou and Eastern Yunnan 1-277 [M. Clapham/M. Clapham] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 112006: authorized by Matthew Clapham, entered by Matthew Clapham on 03.07.2011

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)