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: Owenites koeneni 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 155493: authorized by Matthew Clapham, entered by Matthew Clapham on 15.04.2014
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Nammalites sp. Brühwiler et al. 2010 ceratite | |
Leyeceras rothi Brayard and Bucher 2008 ceratite | |
? Dieneroceras goudemandi Brayard and Bucher 2008 ceratite | |
Preflorianites radians Chao 1959 ceratite | |
Parussuria compressa Hyatt and Smith 1905 ceratite | |
Owenites koeneni Hyatt and Smith 1905 ceratite | |
Gastropoda | |
Ampezzopleura sp. Bandel 1991 snail | |
? Abrekopsis sp. Kaim 2009 snail
Naticopsis "sp. A" M'Coy 1844 snail
Naticopsis "sp. B" M'Coy 1844 snail | |
Conodonta | |
Conodonta "genus indet. F" conodont | |
Discretella discreta Müller 1956 conodont
Discretella robustus Wang and Wang 1976 conodont
Guangxidella bransoni Muller 1956 conodont |