Tetreauville Formation

The Tetreauville Formation is a geological formation of Upper Ordovician age (Trentonian Stage), extending from the north of Trois-Rivières to the Island of Montreal.^[1][2]

Tetreauville Formation
Stratigraphic range: Trentonian PreꞒ Ꞓ O S D C P T J K Pg N
Tetreauville Formation outcropping at the base of Mount Royal.
Type	Geological formation
Unit of	Trenton Group
Underlies	Utica Shale
Overlies	Montreal Formation
Thickness	Up to 168 metres (550 ft)
Lithology
Primary	Limestone
Other	Shale
Location
Region	Quebec
Country	Canada
Type section
Named for	Tétreaultville
Named by	T. H. Clark
Year defined	1941

See also

• Earth sciences portal
• Canada portal
• Paleontology portal

• List of fossiliferous stratigraphic units in Quebec