Xia MaJiaGou Fm., Southern region of QingShuiHe County, Nei Mongo Prov., China: Arenig, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Asaphida
- Asaphidae
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Pseudoasaphus sp.
Schmidt 1901
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| see common names | |||||||
Geography
| Country: | China | State/province: | Nei Mongol | County: | QingShuiHe |
| Coordinates: | 40.0° North, 112.0° East (view map) | ||||
| Paleocoordinates: | 13.5° South, 127.7° East | ||||
| Geographic resolution: | local area |
Time
| Period: | Ordovician | ||
| 10 m.y. bin: | Ordovician 2 | ||
| *Period: | Early/Lower Ordovician | *Epoch: | Arenig |
| Key time interval: | Arenig | ||
| Age range of interval: | 477.70000 - 468.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Xia Majiagou |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | gray,yellow lithified sandy,calcareous lime mudstone |
| Secondary lithology: | "limestone" |
| Lithology description: light gray mudlimestone and limestone interbedded with calcitic shale and brecciated mudlimestone at top and yellowish green thin-bedded mudlimestone interbedded with fine-grained quartz sandstone | |
| Environment: | deep subtidal shelf |
Taphonomy
Collection methods and comments
| Collection excludes: | species names |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 8542 | ||
| Authorizer: | A. Miller | Enterer: | P. Novack-Gottshall | Research group: | marine invertebrate |
| Created: | 2000-08-01 19:05:16 | Last modified: | 2000-08-01 22:05:16 |
| Access level: | the public | Released: | 2000-11-20 13:53:37 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 525. | Nei Monggol Stratigraphic Group. 1978. Regional stratigraphic table of northern China, Nei Monggol part. Geological Publishing House, Beijing, China 1-338 [A. Miller/P. Novack-Gottshall/A. Rees] |