Unit Name: Trenton Group
Unit Type: Lithostratigraphic
Rank: Group
Status: Formal
Usage: Currently in use
Age Interval: Middle Ordovician - Late Ordovician (471.8 - 443.7 ma)
Province/Territory: Ontario; Quebec; New York
Originator: Vanuxem, 1838
Source: GEOLEX
Contributor: P.H. Davenport
Entry Reviewed: No
Name Set: Lithostratigraphic Lexicon
LastChange: 28 Oct 2009