Yangweizhou-Jimachong, Blackwelderia zone: Guzhangian, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Mapaniidae
Pseudomapania truncata n. sp. Yuan and Yin 1998
Trilobita - Olenida - Pterocephaliidae
Yangweizhouia carinata n. gen., n. sp. Yuan and Yin 1998
Trilobita - Corynexochida - Leiostegiidae
Meropalla bella n. sp. Yuan and Yin 1998
Trilobita - Corynexochida - Kaolishaniidae
Palemansuyia prima n. gen., n. sp. Yuan and Yin 1998
Trilobita - Corynexochida - Corynexochidae
Chatiania (Eochatiania) laevigata n. sp. Yuan and Yin 1998
Parachatiania expansa n. gen., n. sp. Yuan and Yin 1998
Trilobita - Asaphida - Anomocaridae
Afghanocare guizhouensis n. sp. Yuan and Yin 1998
Trilobita - Asaphida - Rhyssometopidae
Qiandongaspis qiandongensis n. gen., n. sp. Yuan and Yin 1998
Trilobita - Trinucleida - Alsataspididae
Gaoloupingia gaoloupingensis n. gen., n. sp. Yuan and Yin 1998
Gaoloupingia triangularis n. sp. Yuan and Yin 1998
Trilobita - Ptychopariida - Tricrepicephalidae
Tricrepicephalus asiaticus n. sp. Yuan and Yin 1998
Trilobita - Ptychopariida - Plethopeltidae
Poriplethopeltis sinensis Yuan and Yin 1998
Trilobita - Ptychopariida - Lonchocephalidae
Neoglaphyraspis nitida n. gen., n. sp. Yuan and Yin 1998
Trilobita - Ptychopariida - Ptychopariidae
Cathayanella granulosa n. gen., n. sp. Yuan and Yin 1998
Townleyella rara n. sp. Yuan and Yin 1998
Townleyella similis n. sp. Yuan and Yin 1998
Trilobita - Lichida - Damesellidae
Protaitzehoia quadrata (Resser and Endo 1937)
Yuan and Yin 2001
n. subsp. jimachongensis
Protaitzehoia nitida n. sp. Yuan and Yin 2001
Yuan and Yin 2001
Protaitzehoia granifera Yang 1978
Yuan and Yin 2001
see common names

Geography
Country:China State/province:Guizhou County:Wanshan
Coordinates: 27.5° North, 109.2° East (view map)
Paleocoordinates:24.8° North, 150.2° East
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cambrian Epoch: Miaolingian
Stage: Guzhangian 10 m.y. bin: Cambrian 4
Key time interval: Guzhangian Trilobite zone:  Formosagnostus formosus-Blackwelderia
Age range of interval: 500.5 - 497 m.y. ago
Stratigraphy
Formation:Chefu
Stratigraphic resolution:group of beds
Stratigraphy comments: beds 14-20, lower Chefu Formation, Youshuian = Guzhangian
Lithology and environment
Primary lithology: lithified "limestone"
Lithology description: grey to dark grey, thin-bedded argillaceous limestone, laminated limestone intercalated with grey to pale-grey, thick-bedded rudaceous limestone
Environment:slope
Taphonomy
Modes of preservation:cast,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:125072
Authorizer:W. Kiessling Enterer:U. Merkel
Modifier:U. Merkel Research group:marine invertebrate
Created:2012-03-02 20:03:24 Last modified:2012-03-05 02:25:47
Access level:authorizer only Released:2013-03-02 20:03:24
Creative Commons license:CC BY
Reference information

Primary reference:
40544. J. L. Yuan and G. Z. Yin. 1998. New polymerid trilobites from the Chefu Formation in early Late Cambrian of eastern Guizhou. Acta Palaeontologica Sinica 37(2):137-172 [W. Kiessling/U. Merkel]

Secondary references:

40546 J. L. Yuan and G. Z. Yin. 2001. On taxonomic position of Late Cambrian Protaitzehoia Yang (Trilobita). Acta Palaeontologica Sinica 40(3):343-350 [W. Kiessling/U. Merkel]