The Otterdale Formation is a geologic formation in Virginia. It preserves fossils dating back to the Triassic period.

Otterdale Formation
Stratigraphic range: Triassic
TypeGeological Formation
Unit ofNewark Supergroup
Location
Region Virginia
Country United States
Type section
Named forOtterdale, Chesterfield County, Virginia
Named byShaler and Woodworth, 1899[1]

It was first identified at exposures near Otterdale, Chesterfield County, Virginia, within the Richmond Basin. Shaler and Woodworth described it as follows:

Coarse sandstones, often feldspathic, with silicified trunks of Araucarioxylon; well developed north, south, and west of Otterdale. Thickness, 500+ feet.[1]
Petrified tree (Araucarioxylon sp.) on Otterdale Road in 1899.

See also

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References

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  1. ^ a b Shaler, N. S., and Woodworth, J. B., 1899. Geology of the Richmond Basin, Virginia, Washington: Government Printing Office. Google Book
  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.