The Rock Stream Formation (or Rock Stream siltstone ^[1] ) is a geologic formation in New York. It preserves fossils dating back to the Devonian period.

See also

• List of fossiliferous stratigraphic units in New York

References

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database" . Retrieved 17 December 2021.
• Rickard, L.V.; Isachsen, Y.W.; Fisher, D.W. (1970). "Geologic map of New York: Finger Lakes sheet". New York State Museum . Retrieved 17 September 2015.
• Bergin, M. J. (1964). "Bedrock Geology of the Penn Yan and Keuka Park Quadrangles New York". Geological Survey Bulletin (1161-G). USGS. Retrieved 22 September 2015.
• Schieber, J. (1999). "Distribution and deposition of mudstone facies in the Upper Devonian Sonyea Group of New York" . Journal of Sedimentary Research. 69. SEPM Society for Sedimentary Geology: 909–925. doi:10.2110/jsr.69.909 . Retrieved 22 September 2015.

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