BETA TEST - Fossil data and pages are very much experimental and under development. Please report any problems
Decorah, USA
| Formation | Decorah |
|---|---|
| Member(s) | Guttenberg Rhinidictya bed Rhinidictya Beds Spechts Ferry |
| Age: | 461 - 450 Ma Ordovician |
| Interval | Rocklandian |
| Lithology | mudstone, "limestone"/"shale" |
| Number of Collections | 2 |
| Number of Occurrences | 2 |
Recorded Sample Locations
Associated Units
| Stratigraphic Name | Age | Lithology | Occurrence Records |
|---|---|---|---|
| Decorah - Guttenberg | 461 - 450 Ma Ordovician | shale/"limestone", "shale" | 13 |
| Decorah - Rhinidictya bed | 461 - 450 Ma Ordovician | shale | 7 |
| Decorah - Rhinidictya Beds | 461 - 450 Ma Ordovician | shale | 1 |
| Decorah - Spechts Ferry | 461 - 450 Ma Ordovician | shale, claystone | 76 |
| 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 | |
| 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 | |
| Prosser | 461 - 450 Ma Ordovician | limestone | 33 |
| 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 |
| Spechts Ferry | 461 - 450 Ma Ordovician | shale/"limestone", "shale" | 132 |
| St. Peter Sandstone | 461 - 450 Ma Ordovician | sandstone | 149 |
| Wise Lake - Stewartville | 461 - 450 Ma Ordovician | wackestone | 23 |
| Galena - Decorah Shale | 461 - 450 Ma Ordovician | shale, claystone/"limestone" | 59 |
| Maquoketa - Scales Shale - Clermont | 452 - 450 Ma Late/Upper Ordovician | limestone, "shale" | 111 |
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!
