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USGS Loc. 10503, Plymouth County, Iowa, USA
Lat/Long (Decimal) | 42.7333,-96.2336 |
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Co-ordinates Derivation | based on nearby landmark |
Given Location | Iowa, United States |
Mindat.org Region (for given coordinates) | Plymouth County, Iowa, USA |
Collections
Collection | Reference | Stratigraphic Name | Comments | Lithology | Age |
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USGS Loc. 10503, Plymouth Co. [Graneros Shale] | Cobban W. A. (1983) | Graneros Shale | STRATIGRAPHIC RELATIONS: From the Graneros Shale, which regionally overlies the Dakota Fm (Cenomanian), and is overlain by the Greenhorn Fm (Turonian). AGE: Late Cenomanian, on the basis of inoceramids biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation. | "shale" | 99.6 - 93.5 Ma Late/Upper Cretaceous |
USGS Loc. 10412, Plymouth Co. [Graneros Shale] | Cobban W. A. (1983) | Graneros Shale | STRATIGRAPHIC RELATIONS: From the Graneros Shale, which regionally overlies the Dakota Fm (Cenomanian), and is overlain by the Greenhorn Fm (Turonian). AGE: Cenomanian, on the basis of ammonoid biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation. | "limestone" | 100.5 - 93.9 Ma Late/Upper Cretaceous |
Recorded Fossils
Accepted Name | Hierarchy | Age |
---|---|---|
Inoceramus sp. genus | Animalia : Mollusca : Bivalvia : Myalinida : Inoceramidae : Inoceramus | 100.5 - 93.9 Ma Late/Upper Cretaceous |
Inoceramus ginterensis species | Animalia : Mollusca : Bivalvia : Myalinida : Inoceramidae : Inoceramus : Inoceramus ginterensis | 99.6 - 93.5 Ma Late/Upper Cretaceous |
Dunveganoceras pondi species | Animalia : Mollusca : Cephalopoda : Ammonoidea : Acanthoceratidae : Dunveganoceras : Dunveganoceras pondi | 100.5 - 93.9 Ma Late/Upper Cretaceous |
References
Cobban W. A. (1983) Molluscan fossil record from the northeastern part of the Upper Cretaceous seaway, Western Interior, United States Geological Survey Professional Paper 1253, 1-25 |
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!