Guanzhai, Xiazhen: Ashgill, China
collected by Zhan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Oichnus sp.
Bromley 1981
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1 specimen | ||||||
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Strophomenata
- Orthotetida
- Triplesiidae
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Triplesia zhejiangensis
Liang 1983
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6 specimens | ||||||
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Strophomenata
- Strophomenida
- Sowerbyellidae
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Sowerbyella sinensis
Wang and Jin 1964
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103 specimens | ||||||
| recombined as Sowerbyella (Sowerbyella) sinensis | |||||||
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena sp.
Rafinesque and De Blainville 1824
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6 specimens | ||||||
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Rhynchonellata
- Atrypida
- Atrypinidae
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Ovalospira dichotoma
Fu 1982
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34 specimens | ||||||
| recombined as Schachriomonia dichotoma | |||||||
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Eospirigerina yulangensis
Liang 1983
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1 specimen | ||||||
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Antizygospira liquanensis
Fu 1982
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26 specimens | ||||||
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Rhynchonellata
- Orthida
- Plectorthidae
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Mimella zhejiangensis
Liang 1983
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102 specimens | ||||||
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Rhynchonellata
- Rhynchonellida
- Sphenotretidae
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Altaethyrella zhejiangensis
Wang 1964
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4508 specimens | ||||||
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Tentaculita
- Cornulitida
- Cornulitidae
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Cornulites sp.
Schlotheim 1820
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21 specimens | ||||||
| see common names | |||||||
Geography
| Country: | China | State/province: | Jiangxi | County: | Yushan |
| Coordinates: | 28.6° North, 115.3° East (view map) | ||||
| Paleocoordinates: | 4.3° North, 125.5° East | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 5 | ||
| Key time interval: | Ashgill | Graptolite zone: | Diceratograptus mirus |
| Age range of interval: | 449.60000 - 443.80000 m.y. ago |
Stratigraphy
| Formation: | Xiazhen | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Xiazhen Fm, for which lithostratigraphic relations are not discussed. AGE: Ashgillian. STRATIGRAPHIC POSITION: From the upper part of the Xiazhen Fm. | |||||
Lithology and environment
| Primary lithology: | poorly lithified calcareous mudstone |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Calcareous mudstones. LITHIFICATION: Poorly-lithified, based on figured specimens. | |
| Environment: | coastal indet. |
| Geology comments: ENVIRONMENT: Relatively shallow-water environment (BA2). | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Articulated whole bodies: | many |
| Encrustation: | occasional |
Collection methods and comments
| Collection methods: | bulk,field collection |
| Collection size: | 4786 specimens |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | NIGPAS |
| Collectors: | Zhan |
| Collection method comments: COLLECTOR: Presumably R. Zhan. REPOSITORY: NIGP, Najing, China | |
| Taxonomic list comments:COVERAGE: Appears exhaustive for brachiopods and cornulitids. NOMENCLATURE: Authoritative publication for cornulitids (not brachiopod), with modern nomenclature and species-resolution identifications.
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Metadata
| Database number: | 89295 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2009-05-14 10:12:43 | Last modified: | 2017-03-07 16:10:30 |
| Access level: | the public | Released: | 2009-05-14 10:12:43 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 29956. | R. Zhan and O. Vinn. 2007. Cornulitid epibionts on brachiopod shells from the Late Ordovician (middle Ashgill) of East China. Estonian Journal of Earth Sciences 56(2):101-108 [A. Hendy/A. Hendy] |