Lectionary Calendar
Tuesday, August 19th, 2025
the Week of Proper 15 / Ordinary 20
the Week of Proper 15 / Ordinary 20
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Bible Dictionaries
Niagara Period
Webster's Dictionary
or Resource Toolbox
A subdivision or the American Upper Silurian system, embracing the Medina, Clinton, and Niagara epoch. The rocks of the Niagara epoch, mostly limestones, are extensively distributed, and at Niagara Falls consist of about eighty feet of shale supporting a greater thickness of limestone, which is gradually undermined by the removal of the shale. See Chart of Geology.
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Text Courtesy of BibleSupport.com. Used by Permission.
These files are public domain.
Text Courtesy of BibleSupport.com. Used by Permission.
Bibliography Information
Webster, Noah. Entry for 'Niagara Period'. Noah Webster's American Dictionary. https://www.studylight.org/dictionaries/eng/web/n/niagara-period.html. 1828.
Webster, Noah. Entry for 'Niagara Period'. Noah Webster's American Dictionary. https://www.studylight.org/dictionaries/eng/web/n/niagara-period.html. 1828.
