Usage:
Montour Shale of Sonyea Group (NY)
Montour Member of Middlesex Formation (NY)
Geologic age:
Late Devonian
Type section, locality, area and/or origin of name:
Type section: in Catlin Mill Creek at Odessa (elevation 1,030 ft) and east of Montour Twp., central NY. Traced southeastward to Chenango Forks, 38 mi southeast of Ithaca, NY (Sutton and others, 1962).
AAPG geologic province:
Appalachian basin
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).