Vagrania-Leptathyris Comm., Early Emsian, Nanning Area, S. Guangxi: Early/Lower Emsian, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Pentamerida
- Clorindidae
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Pentamerella sp.
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Rhynchonellata
- Pentamerida
- Gypidulidae
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? Gypidula sp.
Hall 1867
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| fine ribbed | ||||||||||
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Rhynchonellata
- Rhynchonellida
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Rhynchonellida indet.
Kuhn 1949
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| bilobate | ||||||||||
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Rhynchonellata
- Rhynchonellida
- Uncinulidae
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Uncinulus sp.
Bayle 1878
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Nymphorhynchia sp.
Rzhonsnitskaya 1956
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Rhynchonellata
- Spiriferida
- Xenomartiniidae
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? Quadrithyris sp.
Havlicek 1957
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Rhynchonellata
- Spiriferida
- Adolfiidae
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? Brevispirifer sp.
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Rhynchonellata
- Atrypida
- Atrypidae
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Anatrypa sp.
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? Desquamatia sp.
Alekseeva 1960
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Spinatrypa sp.
Stainbrook 1951
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Atrypa sp.
Dalman 1828
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| Atrypa 1 | ||||||||||
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Atrypa sp.
Dalman 1828
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| Atrypa 2 | ||||||||||
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Rhynchonellata
- Atrypida
- Karpinskiidae
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Vagrania sp.
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Rhynchonellata
- Atrypida
- Carinatinidae
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Carinatina sp.
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Rhynchonellata
- Athyridida
- Athyrididae
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Leptathyris sp.
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Rhynchonellata
- Orthida
- Schizophoriidae
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? Schizophoria sp.
King 1850
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Strophomenata
- Strophomenida
- Chonetidae
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Chonetidae indet.
Bronn 1862
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| see common names | ||||||||||
Geography
| Country: | China | State/province: | Guangxi |
| Coordinates: | 22.8° North, 108.3° East (view map) | ||
| Paleocoordinates: | 4.1° North, 126.3° East | ||
| Basis of coordinate: | based on political unit | ||
| Geographic resolution: | small collection |
Time
| Period: | Devonian | Epoch: | Early/Lower Devonian |
| Stage: | Emsian | 10 m.y. bin: | Devonian 2 |
| *International age/stage: | Early/Lower Emsian | ||
| Key time interval: | Early/Lower Emsian | ||
| Age range of interval: | 407.60000 - 398.30000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Stratigraphy comments: "from an unnamed formation in South China" |
Lithology and environment
| Primary lithology: | cherty/siliceous siltstone |
| Includes fossils? | Y |
| Lithology description: "fossils occur largely as articulated valves in a siliceous siltstone matrix indicating relatively quiet water" | |
| Environment: | marine indet. |
| Geology comments: "Although the community is not well located environmentally in South China, except that it is near the outer limits of the shelly facies-Nandan facies, it may be compared with similar units elsewhere [details follow]....This community belongs in about the BA 3-4 position." | |
Taphonomy
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: "currently known in South China from only a single small collection" | |
Metadata
| Database number: | 25866 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Created: | 2002-09-26 13:20:44 | Last modified: | 2006-09-15 15:14:05 |
| Access level: | the public | Released: | 2002-09-26 13:20:44 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 7183. | Y. Wang, A. J. Boucot, J.Y. Rong and X.C. Yang. 1987. Community paleoecology as a geologic tool: the Chinese Ashgillian-Eifelian (latest Ordovician through early Middle Devonian) as an example. Geological Society of America Special Paper 211:1-100 [M. Foote/M. Foote/M. Foote] |