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Horseshoe Gulch unit - 5, Siskiyou County, California, USA
| Formation | Horseshoe Gulch unit |
|---|---|
| Member | 5 |
| Age: | 450 - 443 Ma Paleozoic |
| Interval | Ashgillian |
| Lithology | limestone |
| Number of Collections | 8 |
| Number of Occurrences | 12 |
Recorded Sample Locations
| Location | Region | Stratigraphic Name |
|---|---|---|
| USNM 18169. Horsehoe Gulch | Siskiyou County, California, USA | Horseshoe Gulch unit - 5 |
| Horseshoe Gulch USNM 36441a | Siskiyou County, California, USA | Horseshoe Gulch unit - 5 |
| Horseshoe Gulch USNM 36443a | Siskiyou County, California, USA | Horseshoe Gulch unit - 5 |
Associated Units
| Stratigraphic Name | Age | Lithology | Occurrence Records |
|---|---|---|---|
| Horseshoe Gulch - 5 | 450 - 444 Ma Paleozoic | limestone, packstone/wackestone | 86 |
| Kangaroo Creek | 416 - 393 Ma Early/Lower Devonian | limestone/conglomerate, "limestone", conglomerate/"limestone" | 168 |
Recorded Fossils
| Accepted Name | Hierarchy | Age |
|---|---|---|
 Salopina sp.genus | Animalia : Brachiopoda : Rhynchonellata : Orthida : Draboviidae : Salopina | 470 - 443.4 Ma Paleozoic |
| Hesperorthis sp. genus | Animalia : Brachiopoda : Rhynchonellata : Orthida : Hesperorthidae : Hesperorthis | 449.5 - 443.7 Ma Paleozoic |
| Austinella sp. genus | Animalia : Brachiopoda : Rhynchonellata : Orthida : Plaesiomyidae : Austinella | 449.5 - 443.7 Ma Paleozoic |
| Sigmelasma sp. genus | Animalia : Brachiopoda : Rhynchonellata : Orthida : Wangyuiidae : Sigmelasma | 449.5 - 443.7 Ma Paleozoic |
| Anoptambonites myriomorpheus species | Animalia : Brachiopoda : Strophomenata : Strophomenida : Hesperomenidae : Anoptambonites : Anoptambonites myriomorpheus | 470 - 443.4 Ma Paleozoic |
References
| Potter A. W. (1990) Middle and Late Ordovician brachiopods from the eastern Klamath Mountains, northern California, Palaeontographica Abteilung A 212 1-6, 31-158 |
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!
