Rock Stream Formation

{{Short description|Geologic formation in New York, United States}} {{Infobox rockunit | name = Rock Stream Formation | image = | caption = | type = [[Formation (stratigraphy)|Formation]] | age = [[Frasnian]] | prilithology = [[Siltstone]] | otherlithology = [[Shale]] | namedfor = | namedby = | region = [[New York (state)|New York]] | country = [[United States]] | coordinates = | unitof = [[Sonyea Group]] | subunits = | underlies = [[Cashaqua Shale]] | overlies = [[Pulteney shale]] | thickness = | extent = | area = | map = | map_caption = }}

The '''Rock Stream Formation''' (or Rock Stream siltstone<ref name="USGSSonyeaGroup">{{cite web |url=https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=NYDs%3B5 |title=Sonyea Group |author= |date= |website= |publisher=USGS |access-date=2015-09-17 |quote=}}</ref>) is a [[Formation (stratigraphy)|geologic formation]] in [[New York (state)|New York]]. It preserves [[fossils]] dating back to the [[Devonian]] [[Period (geology)|period]].

==See also== {{Portal|Earth sciences|New York (state)|Paleontology}} * [[List of fossiliferous stratigraphic units in New York]]

==References== <references/> * {{cite web|title= Fossilworks: Gateway to the Paleobiology Database|author= ((Various Contributors to the Paleobiology Database))|url= https://www.fossilworks.org/|access-date= 17 December 2021|df= dmy-all|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= dead}} * {{cite web |url=https://ngmdb.usgs.gov/Prodesc/proddesc_19469.htm |title= Geologic map of New York: Finger Lakes sheet |last1=Rickard |first1=L.V. |last2=Isachsen |first2=Y.W.|last3=Fisher |first3=D.W. |publisher=[[New York State Museum]] |date=1970 |access-date=2015-09-17 }} * {{cite journal |last=Bergin |first= M. J. |date=1964 |title=Bedrock Geology of the Penn Yan and Keuka Park Quadrangles New York |url=https://pubs.er.usgs.gov/publication/b1161G |journal=Geological Survey Bulletin |publisher=USGS |issue=1161-G |access-date=22 September 2015}} * {{cite journal |last=Schieber |first=J. |date=1999 |title=Distribution and deposition of mudstone facies in the Upper Devonian Sonyea Group of New York |url=http://www.shale-mudstone-research-schieber.indiana.edu/sonyea-shales.htm |journal=Journal of Sedimentary Research |publisher=SEPM Society for Sedimentary Geology |volume=69 |pages=909–925 |access-date=22 September 2015 |doi=10.2110/jsr.69.909 |url-access=subscription |archive-date=19 July 2012 |archive-url=https://web.archive.org/web/20120719002357/http://www.shale-mudstone-research-schieber.indiana.edu/sonyea-shales.htm |url-status=dead }} {{Use dmy dates|date=April 2017}}

[[Category:Devonian geology of New York (state)]] [[Category:Devonian southern paleotemperate deposits]] [[Category:Frasnian Stage]] [[Category:Shale formations of the United States]] [[Category:Siltstone formations of the United States]] [[Category:Geologic formations of New York (state)]]