Pismo Formation

{{Short description|Geologic formation in California,United States}}

{{Infobox rockunit

| name = Pismo Formation

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| type = Geological formation

| age = {{fossil range|Pliocene|Pliocene|Pliocene}}

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| region = California

| country = United States

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| subunits = *Squire Member

• Belleview Member
• Gragg Member
• Edna Member
• Miguelito Member

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| thickness = Roughly {{convert|2|km}}

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The Pismo Formation is a geologic formation in California. It preserves fossils dating back to the Pliocene epoch of the Neogene period.{{Cite journal |last1=Lutz |first1=A. T. |last2=Abramsonward |first2=H. |last3=Lettis |first3=W. R. |last4=Thompson |first4=S. |last5=Page |first5=W. D. |date=2011-12-01 |title=The Pismo Formation and evidence for Pliocene tectonic evolution of the San Luis Range, central coast California |url=https://ui.adsabs.harvard.edu/abs/2011AGUFM.T33G2504L |volume=2011 |pages=T33G–2504|bibcode=2011AGUFM.T33G2504L }}