Location 3 Horizon 2: Tremadoc, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Asaphida - Asaphidae
Kayseraspis spicula
Trilobita - Proetida - Hystricuridae
Omuliovia granosa
Trilobita - Corynexochida - Leiostegiidae
Chosenia laticephala Kobayashi 1934
Annamitella retangulosa
Trilobita - Corynexochida - Illaenidae
Illaenus hinomotoensis
Illaenus cf. hinomotoensis
see common names

Geography
Country:China State/province:Jilin Provence
Coordinates: 41.8° North, 126.8° East (view map)
Paleocoordinates:0.4° North, 135.2° East
Basis of coordinate:estimated from map
Time
10 m.y. bin:Cambrian-Ordovician
Key time interval:Tremadoc
Age range of interval:485.00000 - 477.70000 m.y. ago
Stratigraphy
Formation:Yehli Member:Upper
Stratigraphic resolution:member
Stratigraphy comments: 20-50m thick , has nearly the same geographical distrobution as the Liangchiashan formation. Fauna allows correlation of the Upper Yehli formation with Upper Tremadoc equvalents
Lithology and environment
Primary lithology:dolomitic,gray,white lithified "shale"
Lithology description: Alteration of yellowish green shales, thin bedded compact limestones and biocarenites
Environment:marine indet.
Taphonomy
Modes of preservation:body,cast
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection excludes:some macrofossils
Reason for describing collection:biostratigraphic analysis
Collection method comments: Trilobites only; Upper Yehli formation, location 3 horizon 2, Jilin provence, China
Metadata
Database number:157250
Authorizer:M. Hopkins Enterer:S. Mahmood
Modifier:P. Wagner Research group:marine invertebrate
Created:2014-06-11 11:47:45 Last modified:2018-05-18 11:04:37
Access level:the public Released:2014-06-11 11:47:45
Creative Commons license:CC BY
Reference information

Primary reference:
34801. Z. Zhou and R. A. Fortey. 1986. Ordovician trilobites from north and northeastern China. Palaeontographica Abteilung A 192:157-210 [M. Hopkins/M. Hopkins]