Rio Dell Formation
Stratigraphic range: Neogene
Rio Dell Formation at Scotia Bluffs
Type	Formation
Location
Region	California
Country	United States

The Rio Dell Formation is a geologic formation in California. It preserves fossils dating back to the Neogene period.

See also[edit]

• List of fossiliferous stratigraphic units in California
• Paleontology in California

References[edit]

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.