Where: Ha Giang, Vietnam (23.2° N, 105.2° E: paleocoordinates 5.6° N, 96.5° E)
• coordinate stated in text
• outcrop-level geographic resolution
When: Hong Ngai Formation, Early/Lower Triassic (252.2 - 247.2 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: deep subtidal ramp; sandy, calcareous mudstone
Size class: macrofossils
Primary reference: T. Komatsu, H. Dang Tran, and J.-H. Chen. 2006. Depositional Environments and Fossil Bivalves in the Lowermost Parts of the Triassic Systems in North Vietnam and South China . Journal of Geography 115(4):470-483 [A. Dunhill/B. Allen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 201713: authorized by Alex Dunhill, entered by Bethany Allen on 22.05.2019
Creative Commons license: CC BY (attribution)
Taxonomic list
Lingulata | |
Lingula sp. BruguiƩre 1797 | |
Bivalvia | |
Pteria ussurica Kiparisova 1938 pearl oyster | |
Towapteria scythica Wirth 1936 oyster | |
Claraia wangi Patte 1935 scallop | |
Eumorphotis teilhardi scallop | |
Promyalina sp. Kittl 1903 clam |