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Tangtou, China
| Formation | Tangtou |
|---|---|
| Member(s) | Lower Upper |
| Age: | 450 - 445 Ma Late/Upper Ordovician |
| Interval | Actonian - Onnian |
| Lithology | mudstone, "shale"/"limestone", "limestone"/"shale", lime mudstone/"limestone" |
| Number of Collections | 10 |
| Number of Occurrences | 143 |
Recorded Sample Locations
| Location | Region | Stratigraphic Name |
|---|---|---|
| TangTouFarm | Quanjiao County, Chuzhou, Anhui, China | Tangtou |
| WufengFarm | Huangmei Co., Huanggang, Hubei, China | Tangtou |
| Lunshan Trench | Jurong Co., Zhenjiang, Jiangsu, China | Tangtou |
| WuFengFarm | Jiangning District, Nanjing, Jiangsu, China | Tangtou |
Associated Units
| Stratigraphic Name | Age | Lithology | Occurrence Records |
|---|---|---|---|
| Baota | 456 - 450 Ma Late/Upper Ordovician | shale/"limestone", "limestone", "limestone"/mudstone, lime mudstone, lime mudstone/"limestone", lime mudstone/"shale" | 259 |
| Baota - BaoTa | 458 - 452 Ma Late/Upper Ordovician | grainstone, "limestone" | 21 |
| Baota - DaTianBa | 458 - 456 Ma Late/Upper Ordovician | grainstone, lime mudstone | 26 |
| Dawan | 478 - 466 Ma Ordovician | limestone/"shale", "limestone", "shale"/"limestone", lime mudstone, "limestone"/lime mudstone, "shale", sandstone/"shale", lime mudstone/"limestone", grainstone, "shale"/lime mudstone, mudstone | 318 |
| Fengxiang | 485 - 478 Ma Paleozoic | carbonate/"shale", grainstone/dolomite, "limestone"/"shale" | 62 |
| Guniutan | 464 - 450 Ma Ordovician | carbonate, "carbonate"/"shale", "limestone"/"shale", "limestone", grainstone, lime mudstone, "limestone"/lime mudstone | 132 |
| Honghuayuan | 479 - 466 Ma Ordovician | grainstone, "carbonate", "carbonate"/chert, lime mudstone/"limestone", "limestone"/mudstone, "limestone"/"shale", "limestone"/chert, "limestone", lime mudstone/dolomite, "shale"/"limestone", "limestone"/lime mudstone, "limestone"/dolomite, "reef rocks" | 271 |
| Huangmaqing | 242 - 237 Ma Middle Triassic | sandstone/siltstone | 1 |
| Lunshan | 485 - 478 Ma Paleozoic | limestone, dolomite/"limestone" | 32 |
| Miaopo | 458 - 450 Ma Ordovician | shale, "shale"/"carbonate", "shale"/"limestone", mudstone | 160 |
| Sanyuanzhi | 461 - 450 Ma Ordovician | lime mudstone | 4 |
| Shangoucong | 485 - 478 Ma Paleozoic | limestone/sandstone | 4 |
| Shinianpan | 479 - 466 Ma Ordovician | limestone | 34 |
| Tangshan | 461 - 450 Ma Ordovician | limestone | 5 |
| Tangtou - Lower | 458 - 452 Ma Late/Upper Ordovician | mudstone/"limestone" | 26 |
| Tangtou - Upper | 456 - 450 Ma Late/Upper Ordovician | limestone | 18 |
| Wufeng | 445 - 443 Ma Paleozoic | carbonate, "shale"/"limestone", "limestone", lime mudstone, "shale", "shale"/chert, "shale"/claystone, mudstone/siltstone, mudstone | 127 |
| Wufeng - Kuanyinchiao | 445 - 443 Ma Paleozoic | mudstone, "limestone" | 17 |
| Xiaotan | 479 - 466 Ma Ordovician | limestone, "shale"/"limestone", "shale" | 29 |
| Zhouchongcun | 247 - 242 Ma Triassic | carbonate/"siliciclastic" | 7 |
Recorded Fossils
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
