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Dawan - Lower, Hubei, China
| Formation | Dawan |
|---|---|
| Member | Lower |
| Age: | 478 - 466 Ma Ordovician |
| Interval | Arenig |
| Lithology | carbonate/"shale", lime mudstone/"shale", "shale"/lime mudstone, "carbonate", grainstone, "shale"/"limestone" |
| Number of Collections | 10 |
| Number of Occurrences | 230 |
Recorded Sample Locations
| Location | Region | Stratigraphic Name |
|---|---|---|
| Huanghuachang and Yiching | Yun Co., Shiyan, Hubei, China | Dawan - Lower |
| SHod-24. Huanghuachang section | Badong Co., Enshi Autonomous Prefecture (E'xi Autonomous Prefecture), Hubei, China | Dawan - Lower |
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 |
| Dawan - Middle | 470 - 466 Ma Middle Ordovician | limestone, "shale"/"limestone" | 39 |
| Dawan - Upper | 479 - 466 Ma Ordovician | carbonate/"shale", "shale"/"limestone", "shale"/"carbonate" | 117 |
| Fengxiang - Lower | 485 - 478 Ma Paleozoic | carbonate/"shale" | 14 |
| Fengxiang - Upper | 485 - 478 Ma Paleozoic | carbonate/"shale", "shale"/"carbonate", "carbonate" | 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 |
| Linxiang | 450 - 446 Ma Late/Upper Ordovician | limestone/sandstone, "limestone", "shale"/lime mudstone, "shale"/"limestone", lime mudstone/"limestone", "limestone"/lime mudstone | 87 |
| Miaopo | 458 - 450 Ma Ordovician | shale, "shale"/"carbonate", "shale"/"limestone", mudstone | 160 |
| Miaopo - Upper | 458 - 453 Ma Ordovician | shale, mudstone | 42 |
| Nanjinguan - Lower | 485 - 478 Ma Paleozoic | carbonate, "carbonate"/dolomite | 45 |
| Nanjinguan - Middle | 485 - 478 Ma Paleozoic | dolomite | 5 |
| Nanjinguan - Upper | 485 - 478 Ma Paleozoic | carbonate | 8 |
| Wufeng - Graptolite Shale | 456 - 444 Ma Paleozoic | shale, sandstone/claystone | 30 |
| Wufeng - Guangyingqiao | 450 - 444 Ma Paleozoic | shale | 32 |
| Xilingxia | 485 - 478 Ma Paleozoic | carbonate/siltstone, dolomite/siltstone, dolomite | 22 |
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!
