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 classes: macrofossils, microfossils
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 155492: 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 | |
Paranannites sinensis Chao 1959 ceratite
? Jinyaceras sp. Brayard and Bucher 2008 ceratite
Jinyaceras cf. bellum Brayard and Bucher 2008 ceratite | |
Ussuria kwangsiana Chao 1959 ceratite | |
Pseudosageceras multilobatum Noetling 1905 ceratite | |
Conodonta | |
? Hadrodontina "sp. B" conodont | |
Discretella "sp. A", Discretella robustus, Discretella discreta, Guangxidella "sp. B", Guangxidella bransoni, Conservatella conservativa, Neospathodus dieneri, Novispathodus ex gr. waageni
Discretella "sp. A" Orchard 2005 conodont
Discretella robustus Wang and Wang 1976 conodont
Discretella discreta Müller 1956 conodont
Guangxidella "sp. B" Zhang and Yang 1991 conodont
Guangxidella bransoni Muller 1956 conodont
Conservatella conservativa Müller 1956 conodont
Neospathodus dieneri Sweet 1970 conodont
Novispathodus ex gr. waageni Sweet 1970 conodont |