// Workers AI · dad joke modeWhat did the Nestucca Formation say? "I'm a rock solid formation.

Nestucca Formation
Stratigraphic range: Bartonian-Priabonian ~
Type	Formation
Lithology
Primary	Siltstone
Other	Sandstone, shale
Location
Coordinates	45.2°N 124.0°W / 45.2; -124.0
Approximate paleocoordinates	45.5°N 111.7°W / 45.5; -111.7
Region	Tillamook County, Oregon
Country	United States
Type section
Named for	Nestucca River
Nestucca Formation (the United States) Nestucca Formation (Oregon)

The Nestucca Formation is a geologic formation in Oregon. It preserves fossils dating back to the Bartonian to Priabonian stages of the Eocene period.

Fossil content

The formation has provided fossils of:

Vertebrates

Mammals

• Mammalia indet.

Fish

• Heptranchias howelli
• Galeocerdo sp.
• Raja sp.
• Isurus sp.

Invertebrates

Gastropods

• Calliovarica oregonensis

Bivalves

• Nucinella oregona

Decapods

• Macroacaena alseanus

See also

• List of fossiliferous stratigraphic units in Oregon
• Paleontology in Oregon
• Alsea Formation

References

Bibliography

• Hickman, C. S (2018), "A new Calliovarica species (Seguenzioidea: Chilodontidae) from the Eocene of Oregon, USA: Persistence of a relict Mesozoic gastropod group in a unique forearc tectonic setting", PaleoBios, 35: 1–10, doi:10.5070/P9351038726
• Feldmann, R. M (1989), "Lyreidus alseanus Rathbun from the Paleogene of Washington and Oregon, U.S.A.", Annals of Carnegie Museum, 58: 61–70, Bibcode:1989AnCM...58...61F, doi:10.5962/p.330566
• Welton, B. J (1974), "Heptranchias howellii (Reed, 1946) (Selachii: Hexanchidae) in the Eocene of the United States and British Columbia", PaleoBios, 17: 1–15
• Welton, B. J (1972), "Fossil sharks in Oregon", The Ore Bin, 34: 161–170
• Vokes, H. E (1956), "Notes on the Nucinellidae (Pelecypoda) with description of a new species from the Eocene of Oregon", Journal of Paleontology, 30: 652–671