# Hermosa Group

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> Source: https://en.wikipedia.org/wiki/Hermosa_Group
> Source revision: 1308405465
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{{Short description|Geologic formations in Utah and Colorado}}
{{Infobox rockunit
| name           = Hermosa Group
| image          = Hermosa Formation.jpg
| caption        = Hermosa Formation near its type section, [Hermosa, Colorado](/source/Hermosa%2C_Colorado), US
| type           = [Group](/source/Group_(stratigraphy))
| age            =  [Carboniferous](/source/Carboniferous)
| prilithology   = [mudstone](/source/mudstone)
| otherlithology = [shale](/source/shale), [limestone](/source/limestone)
| namedfor       = [Hermosa Creek](/source/Hermosa_Creek)
| namedby        = Cross and Spencer
| year_ts        = 1899
| region         = [Utah](/source/Utah)
| country        = [United States](/source/United_States)
| coordinates    = {{coord|37.431|N|107.837|W|display=inline}}
| unitof         =
| subunits       = [Honaker Trail Formation](/source/Honaker_Trail_Formation)<br/>[Paradox Formation](/source/Paradox_Formation)<br/>[Pinkerton Trail Formation](/source/Pinkerton_Trail_Formation)
| underlies      = [Cutler Group](/source/Cutler_Group)
| overlies       = [Molas Formation](/source/Molas_Formation)
| thickness      =
| extent         =
| area           =
| map            =
| map_caption    =
}}
thumb|Hermosa Formation exposed in a roadcut near Rico, Colorado.
The '''Hermosa Group''' is a [group](/source/Group_(stratigraphy)) of [geologic formation](/source/Formation_(geology))s in [Utah](/source/Utah) and Colorado. It preserves [fossils](/source/fossils) dating back to the [Carboniferous](/source/Carboniferous) [period](/source/Period_(geology)).

==See also==
{{Portal|Earth sciences|Utah|Paleontology}}
* [List of fossiliferous stratigraphic units in Utah](/source/List_of_fossiliferous_stratigraphic_units_in_Utah)
* [Paleontology in Utah](/source/Paleontology_in_Utah)

==References==
* {{cite web|title= Fossilworks: Gateway to the Paleobiology Database|url= https://www.fossilworks.org|access-date= 17 December 2021|archive-date= 25 March 2022|archive-url= https://web.archive.org/web/20220325060448/http://www.fossilworks.org/cgi-bin/bridge.pl?action=home|url-status= live}}

{{Chronostratigraphy of Colorado|Paleozoic state=expanded}}

Category:Carboniferous geology of Utah
Category:Geologic groups of Utah

{{Utah-geologic-formation-stub}}
{{Carboniferous-stub}}

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Adapted from the Wikipedia article [Hermosa Group](https://en.wikipedia.org/wiki/Hermosa_Group) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Hermosa_Group?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.