Usage:
Tuscher Formation of Mesaverde Group (UT*)
Geologic age:
Late Cretaceous (Maastrichtian)*
Type section, locality, area and/or origin of name:
Not designated. Named from Tuscher Canyon, east of the Green River in T. 20 S., R. 16 and 17 E., Grand Co., UT (Fisher, 1936).
Type section designated in Tusher [sic] Canyon, in secs. 9, 13, and 16, T. 20 S., R. 17 E.; sec. 1, T. 20 S., R. 18 E.; sec. 19, T. 19 S., R. 19 E., Grand Co., UT (Franczyk and others, 1990).
AAPG geologic province:
Paradox basin*
Uinta 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 ([ ]).