MolluscaBase name details
From editor or global species database
Type locality "From SE. 1/4 of SE. 1/4, Sec. 10, T. 5 N. , R. 13 E., Sweetgrass county, Montana. About 4000 feet above base of 'No. 3' with highest mammals from Crazy Mountain Field, probably post-Torrejon", USA; Paleocene [details]
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