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0.5 miles northwest of Gunlock, Washington County, Utah, USA
| Lat/Long (Decimal) | 37.29,-113.775 |
|---|---|
| Co-ordinates Derivation | estimated from map |
| Given Location | Utah, United States |
| Mindat.org Region (for given coordinates) | Washington County, Utah, USA |
Collections
| Collection | Reference | Stratigraphic Name | Comments | Lithology | Age |
|---|---|---|---|---|---|
| 0.5 miles northwest of Gunlock | Brown R. W. (1941) | Iron Springs | "About 2500 feet above the base of a section of undifferentiated Colorado and Montana beds" according to Brown. Given the section is about 1000 m thick, this places the locality near the top of the formation (Iron Springs Formation based on geological map). Base of Iron Springs Formation at Gunlock constrained by 101.7 +/- 0.42 Ma 40Ar/39Ar laser fusion dating of sanidine crystals from a bentonite bed (Dyman et al., 2002). Palynomorph assemblage from shale in the lower Iron Springs indicates a C | sandstone | 89.8 - 86.3 Ma Late/Upper Cretaceous |
Recorded Fossils
| Accepted Name | Hierarchy | Age |
|---|---|---|
| Brownichnus favosites species | Celliformidae : Brownichnus : Brownichnus favosites | 89.8 - 86.3 Ma Late/Upper Cretaceous |
References
| Brown R. W. (1941) The comb of a wasp nest from the Upper Cretaceous of Utah, American Journal of Science 239, 54-56 |
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!
