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St. Peter Sandstone, USA
| Formation | St. Peter Sandstone |
|---|---|
| Age: | 461 - 450 Ma Ordovician |
| Interval | Whiterock - Mohawkian |
| Lithology | sandstone |
| Number of Collections | 12 |
| Number of Occurrences | 149 |
Recorded Sample Locations
| Location | Region | Stratigraphic Name |
|---|---|---|
| St. Peter Sandstone | Hennepin County, Minnesota, USA | St. Peter Sandstone |
| St. Peter Sandstone of Southeastern Minnesota: Highwood | Minnesota, USA | St. Peter Sandstone |
| St. Peter Sandstone of Southeastern Minnesota: Daytons Bluff | Minnesota, USA | St. Peter Sandstone |
| St. Peter Sandstone of Southeastern Minnesota: South St. Paul | Minnesota, USA | St. Peter Sandstone |
| St. Peter Sandstone of Southeastern Minnesota: Fountain | Fillmore County, Minnesota, USA | St. Peter Sandstone |
| St. Peter Sandstone of Southeastern Minnesota: Conodonts | Minnesota, USA | St. Peter Sandstone |
| Sardeson Collection | Hennepin County, Minnesota, USA | St. Peter Sandstone |
| Decorah Shale Ostracodes of Minnesota | Morrison County, Minnesota, USA | St. Peter Sandstone |
| Mifflin Formation Echinoderms of the Upper Mississippi Valley | Clinton County, Iowa, USA | St. Peter Sandstone |
| St. Peter Sandstone Cephalopods | Minnesota, USA | St. Peter Sandstone |
| St. Peter Sandstone Cephalopods | Grant County, Wisconsin, USA | St. Peter Sandstone |
Associated Units
| Stratigraphic Name | Age | Lithology | Occurrence Records |
|---|---|---|---|
| Blanding | 441 - 433 Ma Silurian | lime mudstone/wackestone, lime mudstone/packstone, wackestone/grainstone, dolomite | 56 |
| Cummingsville | 461 - 450 Ma Ordovician | limestone, "limestone"/"shale" | 278 |
| Decorah - Rhinidictya Beds | 461 - 450 Ma Ordovician | shale | 1 |
| Decorah Shale | 458 - 450 Ma Late/Upper Ordovician | shale/"limestone", "shale", "limestone" | 447 |
| Dubuque | 461 - 450 Ma Ordovician | wackestone | 70 |
| Glenwood | 461 - 450 Ma Ordovician | 127 | |
| Gower | 433 - 423 Ma Silurian | carbonate | 9 |
| Grand Detour | 461 - 450 Ma Ordovician | limestone | 147 |
| Hopkinton | 439 - 433 Ma Silurian | wackestone | 55 |
| Hopkinton - Farmers Creek | 439 - 433 Ma Silurian | wackestone/packstone, packstone, packstone/grainstone, grainstone/packstone, dolomite | 219 |
| Hopkinton - Sweeney | 441 - 439 Ma Silurian | lime mudstone/packstone | 11 |
| Maquoketa - Clermont | 452 - 450 Ma Late/Upper Ordovician | limestone | 56 |
| Maquoketa - Elgin | 452 - 444 Ma Paleozoic | phosphorite, "shale"/"limestone" | 125 |
| Mifflin | 461 - 450 Ma Ordovician | limestone | 161 |
| Nachusa | 461 - 450 Ma Ordovician | 157 | |
| Pecatonica | 461 - 450 Ma Ordovician | limestone | 110 |
| Platteville | 461 - 450 Ma Ordovician | limestone, "limestone"/dolomite, mudstone | 276 |
| Platteville - Carimona | 461 - 450 Ma Ordovician | 2 | |
| Platteville - Hidden Falls | 461 - 450 Ma Ordovician | limestone | 5 |
| Platteville - Magnolia | 461 - 450 Ma Ordovician | 5 | |
| Platteville, Decorah | 461 - 450 Ma Ordovician | limestone/"shale" | 19 |
| Prosser Limestone | 461 - 443 Ma Paleozoic | limestone | 259 |
| Quimbys Mill | 461 - 450 Ma Ordovician | limestone/dolomite, "limestone" | 194 |
| Scales Shale - Elgin | 461 - 450 Ma Ordovician | shale/"limestone" | 41 |
| Scotch Grove - Welton | 433 - 427 Ma Silurian | wackestone, wackestone/packstone, packstone/wackestone, dolomite | 294 |
| Spechts Ferry | 461 - 450 Ma Ordovician | shale/"limestone", "shale" | 132 |
| Stewartville | 458 - 443 Ma Paleozoic | wackestone, dolomite | 142 |
| Wise Lake - Stewartville | 461 - 450 Ma Ordovician | wackestone | 23 |
| Galena - Decorah Shale | 461 - 450 Ma Ordovician | shale, claystone/"limestone" | 59 |
| Galena - Dubuque | 461 - 450 Ma Ordovician | limestone, wackestone | 68 |
| Galena - Dunleith - Beecher | 461 - 450 Ma Ordovician | limestone | 194 |
| Galena - Dunleith - Eagle Point | 461 - 450 Ma Ordovician | limestone | 198 |
| Galena - Dunleith - Fairplay | 461 - 450 Ma Ordovician | shale/"limestone" | 146 |
| Galena - Dunleith - Mortimer | 461 - 450 Ma Ordovician | limestone | 156 |
| Galena - Dunleith - Rivoli | 461 - 450 Ma Ordovician | limestone | 151 |
| Galena - Dunleith - Sherwood | 453 - 445 Ma Late/Upper Ordovician | limestone, wackestone | 180 |
| Galena - Dunleith - Wall | 461 - 450 Ma Ordovician | limestone | 168 |
| Galena - Dunleith - Wyota | 461 - 450 Ma Ordovician | limestone | 159 |
| Galena - Guttenberg | 461 - 450 Ma Ordovician | limestone, "limestone"/"shale" | 204 |
| Galena - Guttenberg - Glenhaven | 461 - 450 Ma Ordovician | mudstone/"shale" | 16 |
| Galena - Ion - Buckhorn | 461 - 450 Ma Ordovician | limestone | 203 |
| Galena - Ion - St. James | 461 - 450 Ma Ordovician | shale | 180 |
| Galena - Wise Lake - Rifle Hill | 461 - 450 Ma Ordovician | dolomite | 65 |
| Galena - Wise Lake - Sinsinawa | 461 - 450 Ma Ordovician | limestone | 155 |
| Maquoketa - Brainard Shale | 450 - 444 Ma Paleozoic | shale | 43 |
| Maquoketa - Fort Atkinson Limestone | 452 - 450 Ma Late/Upper Ordovician | dolomite, "limestone" | 41 |
| Maquoketa - Neda | 450 - 444 Ma Paleozoic | 17 | |
| Maquoketa - Scales Shale - Clermont | 452 - 450 Ma Late/Upper Ordovician | limestone, "shale" | 111 |
| Maquoketa - Scales Shale - Elgin | 450 - 444 Ma Paleozoic | limestone, wackestone | 157 |
| Platteville - Grand Detour | 461 - 450 Ma Ordovician | limestone | 28 |
| Platteville - Pecatonica | 461 - 450 Ma Ordovician | limestone | 13 |
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!
