Tonosí Formation

The Tonosí Formation is a geologic formation in Panama. It preserves fossils dating back to the Paleogene period (Priabonian).[1]

Tonosí Formation Stratigraphic range: Priabonian (Chadronian) ~38–34 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Formation
Lithology
Primary	Sandstone
Location
Coordinates	7.4°N 80.4°W / 7.4; -80.4
Approximate paleocoordinates	0.8°N 104.2°W / 0.8; -104.2
Region	Los Santos Province
Country	Panama
Type section
Named for	Tonosí
Tonosí Formation (Panama)

Fossil content

Among others, the formation has provided fossils of:

Harrisianella sp.[2]

See also

List of fossiliferous stratigraphic units in Panama

References

Tonosí Formation at Fossilworks.org
Woodring, 1973, p.472

Bibliography

Woodring, W.P. 1973. Geology and Paleontology of Canal Zone and Adjoining Parts of Panama - 306E Description of Tertiary Mollusks (Additions to gastropods, scaphopods, pelecypods: Nuculidae to Malleidae), 1–128. USGS. Accessed 2019-02-09.

Further reading

A. K. Miller and W. M. Furnish. 1939. Aturias from the Eocene of Panama. Journal of Paleontology 13(1):77-79

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