Usage:
Pumpkin Buttes Member of Mesaverde Formation (WY)
Subunits:
Ferguson Sandstone Lentil [not proper for a member to be divided into a lentil]
Geologic age:
Late Cretaceous
Type section, locality, area and/or origin of name:
Type area not designated. "Should be designated somewhere along the outcrop at the western margin of the Powder River basin, WY" (Purcell, 1961).
AAPG geologic province:
Powder River 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 ([ ]).