Where: Yunnan, China (22.8° N, 99.7° E: paleocoordinates 14.1° S, 84.5° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Laochang Formation, Changhsingian (254.2 - 252.2 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, tuffaceous siliciclastic sediments
Size class: macrofossils
Preservation: mold/impression
Primary reference: Q. L. Feng, X. S. Cui, and B. P. Liu. 1992. Discovery of Late Permian bivalve fauna from Laochang of Lancang, west Yunnan and its biogeographic characteristics. Earth Science - China University of Geosciences 17:512-520 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 108196: authorized by Matthew Clapham, entered by Matthew Clapham on 25.04.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
| Bivalvia | |
|
Nuculopsis wymmensis Keyserling 1846 nut clam | |
|
Phestia cf. zhejiangensis Liu 1976 clam | |
|
? Astartella sp. Hall 1858 clam | |
Parallelodon laochangensis n. sp.
Parallelodon laochangensis n. sp. Feng et al. 1992 clam | |
|
? Liebea sp. Waagen 1881 clam | |
|
Bakevellia jiuzhaiensis Guo 1985 oyster | |
Paradoxipecten trigonalis n. sp.
Paradoxipecten trigonalis n. sp. Feng et al. 1992 scallop | |
|
Heteropecten sp. Kegel and Costa 1951 scallop
Etheripecten "sp. 1" Waterhouse 1963 scallop
? Etheripecten "sp. 2" Waterhouse 1963 scallop
Etheripecten cf. sichuanensis Chen et al. 1974 scallop | |
Streblochondria sp., Xinanopecten orbicularis n. gen. n. sp.
Streblochondria sp. Newell 1938 scallop
Xinanopecten orbicularis n. gen. n. sp. Feng et al. 1992 scallop | |
|
Pernopecten zhutangensis n. sp. Feng et al. 1992 scallop
Entolium piriformis Liu 1976 scallop | |