Where: Vietnam (21.7° N, 106.7° E: paleocoordinates 6.1° N, 98.3° E)
• coordinate estimated from map
• small collection-level geographic resolution
When: Urdyceras tulongensis ammonoid zone, Bac Thuy Formation, Smithian (251.3 - 247.2 Ma)
• bed-level stratigraphic resolution
Environment/lithology: slope; lithified limestone
Size class: macrofossils
Preservation: mold/impression
Collection methods: Repository: All cephalopod, gastropod, ostracod and conodont specimens are reposited at the National Museum of Nature and Science, Tsukuba. Bivalves are stored in the Faculty of Science, Kumamoto University, Kumamoto, and radiolarian specimens are stored at Tokyo Gakugei University, Koganei.
Primary reference: Y. Shigeta, T. Komatsu, T. Maekawa and H. T. Dang. 2014. Olenekian (Early Triassic) stratigraphy and fossil assemblages in northeastern Vietnam. National Museum of Nature and Science Monographs 45:1-309 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 155485: authorized by Matthew Clapham, entered by Matthew Clapham on 15.04.2014
Creative Commons license: CC BY (attribution)
Taxonomic list
| Cephalopoda | |
|
Urdyceras tulongensis Brühwiler et al. 2010 ammonite
Galfettites simplicitatis Brayard and Bucher 2008 ammonite | |
|
Ceratitida "genus indet. B" Hyatt 1884 ceratite | |
|
Aspenites acutus Hyatt and Smith 1905 ceratite | |
|
Paranannites sp. Hyatt and Smith 1905 ceratite
? Jinyaceras sp. Brayard and Bucher 2008 ceratite
Jinyaceras cf. bellum Brayard and Bucher 2008 ceratite | |
|
Submeekoceras hsuyuchieni Chao 1959 ceratite | |
|
Pseudaspidites muthianus Krafft and Diener 1909 ceratite | |
|
Ussuria kwangsiana Chao 1959 ceratite | |