{{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, US | type = Group | age = Carboniferous | prilithology = mudstone | otherlithology = shale, limestone | namedfor = Hermosa Creek | namedby = Cross and Spencer | year_ts = 1899 | region = Utah | country = United States | coordinates = {{coord|37.431|N|107.837|W|display=inline}} | unitof = | subunits = Honaker Trail Formation<br/>Paradox Formation<br/>Pinkerton Trail Formation | underlies = Cutler Group | overlies = Molas Formation | thickness = | extent = | area = | map = | map_caption = }} thumb|Hermosa Formation exposed in a roadcut near Rico, Colorado. The '''Hermosa Group''' is a group of geologic formations in Utah and Colorado. It preserves fossils dating back to the Carboniferous period.
==See also== {{Portal|Earth sciences|Utah|Paleontology}} * List of fossiliferous stratigraphic units in Utah * 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}}