BT01-09, Bac Thuy section: Smithian, Vietnam

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Phylloceratida - Galfettitidae
Urdyceras tulongensis Brühwiler et al. 2010
(4 measurements)
Galfettites simplicitatis Brayard and Bucher 2008
Cephalopoda - Ceratitida
Ceratitida informal genus indet. B
Cephalopoda - Ceratitida - Ussuriidae
Ussuria kwangsiana Chao 1959
(1 measurement)
Cephalopoda - Ceratitida - Aspenitidae
Aspenites acutus Hyatt and Smith 1905
Cephalopoda - Ceratitida - Melagathiceratidae
Paranannites sp. Hyatt and Smith 1905
(1 measurement)
? Jinyaceras sp. Brayard and Bucher 2008
(1 measurement)
Jinyaceras cf. bellum Brayard and Bucher 2008
(1 measurement)
Cephalopoda - Ceratitida - Proptychitidae
Pseudaspidites muthianus (Krafft and Diener 1909)
(1 measurement)
Cephalopoda - Ceratitida - Arctoceratidae
Submeekoceras hsuyuchieni (Chao 1959)
(2 measurements)
see common names

Geography
Country:Vietnam
Coordinates: 21.7° North, 106.7° East (view map)
Paleocoordinates:6.1° North, 98.3° East
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Triassic Epoch:Early/Lower Triassic
Stage:Olenekian 10 m.y. bin:Triassic 1
Key time interval:Smithian Ammonoid zone: Urdyceras tulongensis
Age range of interval:251.20000 - 248.90000 m.y. ago
Stratigraphy
Formation:Bac Thuy
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: lithified "limestone"
Environment:slope
Taphonomy
Modes of preservation:body,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Collection method comments: 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.
Metadata
Database number:155485
Authorizer:M. Clapham Enterer:M. Clapham
Research group:marine invertebrate
Created:2014-04-15 17:32:47 Last modified:2014-04-15 17:32:47
Access level:the public Released:2014-04-15 17:32:47
Creative Commons license:CC BY
Reference information

Primary reference:

50775. 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]